Home / 435,445.08-653,368.50-198,860.28

Finding the Fourth Proportional to 435,445.08, 653,368.50 and 198,860.28

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Solution

The fourth proportional to 435,445.08, 653,368.50 and 198,860.28 is: 298,382.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,445.08 : 653,368.50 = 198,860.28 : x
  2. Step 2: Convert to fraction form
    435,445.08/653,368.50 = 198,860.28/x
  3. Step 3: Cross multiply
    435,445.08x = 653,368.50 × 198,860.28
  4. Step 4: Simplify right side
    435,445.08x = 129,929,042,853.18
  5. Step 5: Solve for x
    x = 129,929,042,853.18/435,445.08
  6. Step 6: Final answer
    x = 298,382.16

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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.