Home / 435,442.08-653,364-198,857.28

Finding the Fourth Proportional to 435,442.08, 653,364 and 198,857.28

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Solution

The fourth proportional to 435,442.08, 653,364 and 198,857.28 is: 298,377.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,442.08 : 653,364 = 198,857.28 : x
  2. Step 2: Convert to fraction form
    435,442.08/653,364 = 198,857.28/x
  3. Step 3: Cross multiply
    435,442.08x = 653,364 × 198,857.28
  4. Step 4: Simplify right side
    435,442.08x = 129,926,187,889.92
  5. Step 5: Solve for x
    x = 129,926,187,889.92/435,442.08
  6. Step 6: Final answer
    x = 298,377.66

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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.