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Finding the Fourth Proportional to 317,437.96, 438,063.09 and 174,200.39

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Solution

The fourth proportional to 317,437.96, 438,063.09 and 174,200.39 is: 240,395.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,437.96 : 438,063.09 = 174,200.39 : x
  2. Step 2: Convert to fraction form
    317,437.96/438,063.09 = 174,200.39/x
  3. Step 3: Cross multiply
    317,437.96x = 438,063.09 × 174,200.39
  4. Step 4: Simplify right side
    317,437.96x = 76,310,761,122.61
  5. Step 5: Solve for x
    x = 76,310,761,122.61/317,437.96
  6. Step 6: Final answer
    x = 240,395.83

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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.