Home / 459,034.20-688,551.78-143,492.76

Finding the Fourth Proportional to 459,034.20, 688,551.78 and 143,492.76

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Solution

The fourth proportional to 459,034.20, 688,551.78 and 143,492.76 is: 215,239.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,034.20 : 688,551.78 = 143,492.76 : x
  2. Step 2: Convert to fraction form
    459,034.20/688,551.78 = 143,492.76/x
  3. Step 3: Cross multiply
    459,034.20x = 688,551.78 × 143,492.76
  4. Step 4: Simplify right side
    459,034.20x = 98,802,195,315.11
  5. Step 5: Solve for x
    x = 98,802,195,315.11/459,034.20
  6. Step 6: Final answer
    x = 215,239.29

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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.