Home / 266,325.92-398,712.50-139,665.82

Finding the Fourth Proportional to 266,325.92, 398,712.50 and 139,665.82

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Solution

The fourth proportional to 266,325.92, 398,712.50 and 139,665.82 is: 209,091.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,325.92 : 398,712.50 = 139,665.82 : x
  2. Step 2: Convert to fraction form
    266,325.92/398,712.50 = 139,665.82/x
  3. Step 3: Cross multiply
    266,325.92x = 398,712.50 × 139,665.82
  4. Step 4: Simplify right side
    266,325.92x = 55,686,508,256.75
  5. Step 5: Solve for x
    x = 55,686,508,256.75/266,325.92
  6. Step 6: Final answer
    x = 209,091.58

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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.