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Finding the Fourth Proportional to 317,439.52, 438,079.17 and 174,204.69

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Solution

The fourth proportional to 317,439.52, 438,079.17 and 174,204.69 is: 240,409.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,439.52 : 438,079.17 = 174,204.69 : x
  2. Step 2: Convert to fraction form
    317,439.52/438,079.17 = 174,204.69/x
  3. Step 3: Cross multiply
    317,439.52x = 438,079.17 × 174,204.69
  4. Step 4: Simplify right side
    317,439.52x = 76,315,442,943.89
  5. Step 5: Solve for x
    x = 76,315,442,943.89/317,439.52
  6. Step 6: Final answer
    x = 240,409.40

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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.