Home / 435,865.80-653,645.10-155,392.20

Finding the Fourth Proportional to 435,865.80, 653,645.10 and 155,392.20

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Solution

The fourth proportional to 435,865.80, 653,645.10 and 155,392.20 is: 233,033.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,865.80 : 653,645.10 = 155,392.20 : x
  2. Step 2: Convert to fraction form
    435,865.80/653,645.10 = 155,392.20/x
  3. Step 3: Cross multiply
    435,865.80x = 653,645.10 × 155,392.20
  4. Step 4: Simplify right side
    435,865.80x = 101,571,350,108.22
  5. Step 5: Solve for x
    x = 101,571,350,108.22/435,865.80
  6. Step 6: Final answer
    x = 233,033.54

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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.