Home / 435,943.80-653,915.70-225,646.20

Finding the Fourth Proportional to 435,943.80, 653,915.70 and 225,646.20

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Solution

The fourth proportional to 435,943.80, 653,915.70 and 225,646.20 is: 338,469.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,943.80 : 653,915.70 = 225,646.20 : x
  2. Step 2: Convert to fraction form
    435,943.80/653,915.70 = 225,646.20/x
  3. Step 3: Cross multiply
    435,943.80x = 653,915.70 × 225,646.20
  4. Step 4: Simplify right side
    435,943.80x = 147,553,592,825.34
  5. Step 5: Solve for x
    x = 147,553,592,825.34/435,943.80
  6. Step 6: Final answer
    x = 338,469.30

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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.