Home / 435,634.20-653,151.60-221,988.60

Finding the Fourth Proportional to 435,634.20, 653,151.60 and 221,988.60

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Solution

The fourth proportional to 435,634.20, 653,151.60 and 221,988.60 is: 332,830.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,634.20 : 653,151.60 = 221,988.60 : x
  2. Step 2: Convert to fraction form
    435,634.20/653,151.60 = 221,988.60/x
  3. Step 3: Cross multiply
    435,634.20x = 653,151.60 × 221,988.60
  4. Step 4: Simplify right side
    435,634.20x = 144,992,209,271.76
  5. Step 5: Solve for x
    x = 144,992,209,271.76/435,634.20
  6. Step 6: Final answer
    x = 332,830.18

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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.