Home / 438,313.10-657,016.05-238,210.70

Finding the Fourth Proportional to 438,313.10, 657,016.05 and 238,210.70

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Solution

The fourth proportional to 438,313.10, 657,016.05 and 238,210.70 is: 357,069.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,313.10 : 657,016.05 = 238,210.70 : x
  2. Step 2: Convert to fraction form
    438,313.10/657,016.05 = 238,210.70/x
  3. Step 3: Cross multiply
    438,313.10x = 657,016.05 × 238,210.70
  4. Step 4: Simplify right side
    438,313.10x = 156,508,253,181.74
  5. Step 5: Solve for x
    x = 156,508,253,181.74/438,313.10
  6. Step 6: Final answer
    x = 357,069.53

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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.