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Finding the Fourth Proportional to 459,442.53, 689,163.80 and 143,924.13

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Solution

The fourth proportional to 459,442.53, 689,163.80 and 143,924.13 is: 215,886.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,442.53 : 689,163.80 = 143,924.13 : x
  2. Step 2: Convert to fraction form
    459,442.53/689,163.80 = 143,924.13/x
  3. Step 3: Cross multiply
    459,442.53x = 689,163.80 × 143,924.13
  4. Step 4: Simplify right side
    459,442.53x = 99,187,299,622.87
  5. Step 5: Solve for x
    x = 99,187,299,622.87/459,442.53
  6. Step 6: Final answer
    x = 215,886.20

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Similar ratio
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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.