Home / 435,865.20-653,797.80-155,281.20

Finding the Fourth Proportional to 435,865.20, 653,797.80 and 155,281.20

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Solution

The fourth proportional to 435,865.20, 653,797.80 and 155,281.20 is: 232,921.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,865.20 : 653,797.80 = 155,281.20 : x
  2. Step 2: Convert to fraction form
    435,865.20/653,797.80 = 155,281.20/x
  3. Step 3: Cross multiply
    435,865.20x = 653,797.80 × 155,281.20
  4. Step 4: Simplify right side
    435,865.20x = 101,522,506,941.36
  5. Step 5: Solve for x
    x = 101,522,506,941.36/435,865.20
  6. Step 6: Final answer
    x = 232,921.80

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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.