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Finding the Fourth Proportional to 571.77, 857.55 and 187.02

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Solution

The fourth proportional to 571.77, 857.55 and 187.02 is: 280.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.77 : 857.55 = 187.02 : x
  2. Step 2: Convert to fraction form
    571.77/857.55 = 187.02/x
  3. Step 3: Cross multiply
    571.77x = 857.55 × 187.02
  4. Step 4: Simplify right side
    571.77x = 160,374.71
  5. Step 5: Solve for x
    x = 160,374.71/571.77
  6. Step 6: Final answer
    x = 280.49

Related Problems

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Half scale
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Double scale
Find fourth proportional to 572.77, 859.05 and 188.02
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.