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Finding the Fourth Proportional to 348,499.75, 522,539.31 and 156,339.14

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Solution

The fourth proportional to 348,499.75, 522,539.31 and 156,339.14 is: 234,414.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,499.75 : 522,539.31 = 156,339.14 : x
  2. Step 2: Convert to fraction form
    348,499.75/522,539.31 = 156,339.14/x
  3. Step 3: Cross multiply
    348,499.75x = 522,539.31 × 156,339.14
  4. Step 4: Simplify right side
    348,499.75x = 81,693,346,866.25
  5. Step 5: Solve for x
    x = 81,693,346,866.25/348,499.75
  6. Step 6: Final answer
    x = 234,414.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.