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Finding the Fourth Proportional to 350,080.20, 524,925.90 and 139,480.20

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Solution

The fourth proportional to 350,080.20, 524,925.90 and 139,480.20 is: 209,142.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,080.20 : 524,925.90 = 139,480.20 : x
  2. Step 2: Convert to fraction form
    350,080.20/524,925.90 = 139,480.20/x
  3. Step 3: Cross multiply
    350,080.20x = 524,925.90 × 139,480.20
  4. Step 4: Simplify right side
    350,080.20x = 73,216,769,517.18
  5. Step 5: Solve for x
    x = 73,216,769,517.18/350,080.20
  6. Step 6: Final answer
    x = 209,142.85

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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.