Home / 459,658.38-689,487.57-144,140.70

Finding the Fourth Proportional to 459,658.38, 689,487.57 and 144,140.70

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Solution

The fourth proportional to 459,658.38, 689,487.57 and 144,140.70 is: 216,211.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,658.38 : 689,487.57 = 144,140.70 : x
  2. Step 2: Convert to fraction form
    459,658.38/689,487.57 = 144,140.70/x
  3. Step 3: Cross multiply
    459,658.38x = 689,487.57 × 144,140.70
  4. Step 4: Simplify right side
    459,658.38x = 99,383,220,981.10
  5. Step 5: Solve for x
    x = 99,383,220,981.10/459,658.38
  6. Step 6: Final answer
    x = 216,211.05

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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.