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Finding the Fourth Proportional to 238,140.39, 357,210.57 and 71,928.39

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Solution

The fourth proportional to 238,140.39, 357,210.57 and 71,928.39 is: 107,892.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,140.39 : 357,210.57 = 71,928.39 : x
  2. Step 2: Convert to fraction form
    238,140.39/357,210.57 = 71,928.39/x
  3. Step 3: Cross multiply
    238,140.39x = 357,210.57 × 71,928.39
  4. Step 4: Simplify right side
    238,140.39x = 25,693,581,191.08
  5. Step 5: Solve for x
    x = 25,693,581,191.08/238,140.39
  6. Step 6: Final answer
    x = 107,892.58

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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.