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Finding the Fourth Proportional to 317,454.50, 438,073.43 and 174,216.93

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Solution

The fourth proportional to 317,454.50, 438,073.43 and 174,216.93 is: 240,411.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,454.50 : 438,073.43 = 174,216.93 : x
  2. Step 2: Convert to fraction form
    317,454.50/438,073.43 = 174,216.93/x
  3. Step 3: Cross multiply
    317,454.50x = 438,073.43 × 174,216.93
  4. Step 4: Simplify right side
    317,454.50x = 76,319,807,218.09
  5. Step 5: Solve for x
    x = 76,319,807,218.09/317,454.50
  6. Step 6: Final answer
    x = 240,411.80

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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.