Home / 459,324.50-688,942.20-139,479.14

Finding the Fourth Proportional to 459,324.50, 688,942.20 and 139,479.14

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Solution

The fourth proportional to 459,324.50, 688,942.20 and 139,479.14 is: 209,205.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,324.50 : 688,942.20 = 139,479.14 : x
  2. Step 2: Convert to fraction form
    459,324.50/688,942.20 = 139,479.14/x
  3. Step 3: Cross multiply
    459,324.50x = 688,942.20 × 139,479.14
  4. Step 4: Simplify right side
    459,324.50x = 96,093,065,565.71
  5. Step 5: Solve for x
    x = 96,093,065,565.71/459,324.50
  6. Step 6: Final answer
    x = 209,205.18

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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.