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Finding the Fourth Proportional to 559.61, 839.39 and 235.01

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Solution

The fourth proportional to 559.61, 839.39 and 235.01 is: 352.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.61 : 839.39 = 235.01 : x
  2. Step 2: Convert to fraction form
    559.61/839.39 = 235.01/x
  3. Step 3: Cross multiply
    559.61x = 839.39 × 235.01
  4. Step 4: Simplify right side
    559.61x = 197,259.67
  5. Step 5: Solve for x
    x = 197,259.67/559.61
  6. Step 6: Final answer
    x = 352.50

Related Problems

Find fourth proportional to 279.80, 419.69 and 117.50
Half scale
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Double scale
Find fourth proportional to 560.61, 840.88 and 236.01
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.