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Finding the Fourth Proportional to 317,461.61, 438,102.36 and 174,234.98

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Solution

The fourth proportional to 317,461.61, 438,102.36 and 174,234.98 is: 240,447.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,461.61 : 438,102.36 = 174,234.98 : x
  2. Step 2: Convert to fraction form
    317,461.61/438,102.36 = 174,234.98/x
  3. Step 3: Cross multiply
    317,461.61x = 438,102.36 × 174,234.98
  4. Step 4: Simplify right side
    317,461.61x = 76,332,753,742.04
  5. Step 5: Solve for x
    x = 76,332,753,742.04/317,461.61
  6. Step 6: Final answer
    x = 240,447.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.