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Finding the Fourth Proportional to 350,068.20, 524,907.90 and 139,468.20

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Solution

The fourth proportional to 350,068.20, 524,907.90 and 139,468.20 is: 209,124.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,068.20 : 524,907.90 = 139,468.20 : x
  2. Step 2: Convert to fraction form
    350,068.20/524,907.90 = 139,468.20/x
  3. Step 3: Cross multiply
    350,068.20x = 524,907.90 × 139,468.20
  4. Step 4: Simplify right side
    350,068.20x = 73,207,959,978.78
  5. Step 5: Solve for x
    x = 73,207,959,978.78/350,068.20
  6. Step 6: Final answer
    x = 209,124.85

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1.5x scale

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.