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Finding the Fourth Proportional to 437,207.20, 655,810.80 and 157,040.80

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Solution

The fourth proportional to 437,207.20, 655,810.80 and 157,040.80 is: 235,561.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,207.20 : 655,810.80 = 157,040.80 : x
  2. Step 2: Convert to fraction form
    437,207.20/655,810.80 = 157,040.80/x
  3. Step 3: Cross multiply
    437,207.20x = 655,810.80 × 157,040.80
  4. Step 4: Simplify right side
    437,207.20x = 102,989,052,680.64
  5. Step 5: Solve for x
    x = 102,989,052,680.64/437,207.20
  6. Step 6: Final answer
    x = 235,561.20

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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.