Home / 459,016.20-688,524.30-143,472.60

Finding the Fourth Proportional to 459,016.20, 688,524.30 and 143,472.60

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Solution

The fourth proportional to 459,016.20, 688,524.30 and 143,472.60 is: 215,208.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,016.20 : 688,524.30 = 143,472.60 : x
  2. Step 2: Convert to fraction form
    459,016.20/688,524.30 = 143,472.60/x
  3. Step 3: Cross multiply
    459,016.20x = 688,524.30 × 143,472.60
  4. Step 4: Simplify right side
    459,016.20x = 98,784,371,484.18
  5. Step 5: Solve for x
    x = 98,784,371,484.18/459,016.20
  6. Step 6: Final answer
    x = 215,208.90

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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.