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Finding the Fourth Proportional to 317,604.72, 438,295.25 and 174,373.98

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Solution

The fourth proportional to 317,604.72, 438,295.25 and 174,373.98 is: 240,636.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,604.72 : 438,295.25 = 174,373.98 : x
  2. Step 2: Convert to fraction form
    317,604.72/438,295.25 = 174,373.98/x
  3. Step 3: Cross multiply
    317,604.72x = 438,295.25 × 174,373.98
  4. Step 4: Simplify right side
    317,604.72x = 76,427,287,593.53
  5. Step 5: Solve for x
    x = 76,427,287,593.53/317,604.72
  6. Step 6: Final answer
    x = 240,636.50

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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.