Home / 459,325.66-688,943.94-139,480.30

Finding the Fourth Proportional to 459,325.66, 688,943.94 and 139,480.30

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Solution

The fourth proportional to 459,325.66, 688,943.94 and 139,480.30 is: 209,206.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,325.66 : 688,943.94 = 139,480.30 : x
  2. Step 2: Convert to fraction form
    459,325.66/688,943.94 = 139,480.30/x
  3. Step 3: Cross multiply
    459,325.66x = 688,943.94 × 139,480.30
  4. Step 4: Simplify right side
    459,325.66x = 96,094,107,434.38
  5. Step 5: Solve for x
    x = 96,094,107,434.38/459,325.66
  6. Step 6: Final answer
    x = 209,206.92

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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.