Home / 459,660.83-689,491.25-144,142.34

Finding the Fourth Proportional to 459,660.83, 689,491.25 and 144,142.34

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Solution

The fourth proportional to 459,660.83, 689,491.25 and 144,142.34 is: 216,213.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,660.83 : 689,491.25 = 144,142.34 : x
  2. Step 2: Convert to fraction form
    459,660.83/689,491.25 = 144,142.34/x
  3. Step 3: Cross multiply
    459,660.83x = 689,491.25 × 144,142.34
  4. Step 4: Simplify right side
    459,660.83x = 99,384,882,184.53
  5. Step 5: Solve for x
    x = 99,384,882,184.53/459,660.83
  6. Step 6: Final answer
    x = 216,213.51

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Similar ratio
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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.