Home / 435,446.08-653,370-198,861.28

Finding the Fourth Proportional to 435,446.08, 653,370 and 198,861.28

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Solution

The fourth proportional to 435,446.08, 653,370 and 198,861.28 is: 298,383.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,446.08 : 653,370 = 198,861.28 : x
  2. Step 2: Convert to fraction form
    435,446.08/653,370 = 198,861.28/x
  3. Step 3: Cross multiply
    435,446.08x = 653,370 × 198,861.28
  4. Step 4: Simplify right side
    435,446.08x = 129,929,994,513.60
  5. Step 5: Solve for x
    x = 129,929,994,513.60/435,446.08
  6. Step 6: Final answer
    x = 298,383.66

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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.