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Finding the Fourth Proportional to 573.76, 860.55 and 189.01

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Solution

The fourth proportional to 573.76, 860.55 and 189.01 is: 283.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.76 : 860.55 = 189.01 : x
  2. Step 2: Convert to fraction form
    573.76/860.55 = 189.01/x
  3. Step 3: Cross multiply
    573.76x = 860.55 × 189.01
  4. Step 4: Simplify right side
    573.76x = 162,652.56
  5. Step 5: Solve for x
    x = 162,652.56/573.76
  6. Step 6: Final answer
    x = 283.49

Related Problems

Find fourth proportional to 286.88, 430.28 and 94.51
Half scale
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Double scale
Find fourth proportional to 574.76, 862.05 and 190.01
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.