Home / 459,008.20-688,577.10-143,432.20

Finding the Fourth Proportional to 459,008.20, 688,577.10 and 143,432.20

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Solution

The fourth proportional to 459,008.20, 688,577.10 and 143,432.20 is: 215,168.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,008.20 : 688,577.10 = 143,432.20 : x
  2. Step 2: Convert to fraction form
    459,008.20/688,577.10 = 143,432.20/x
  3. Step 3: Cross multiply
    459,008.20x = 688,577.10 × 143,432.20
  4. Step 4: Simplify right side
    459,008.20x = 98,764,128,322.62
  5. Step 5: Solve for x
    x = 98,764,128,322.62/459,008.20
  6. Step 6: Final answer
    x = 215,168.55

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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.