Home / 345,042.28-517,563.10-155,280.84

Finding the Fourth Proportional to 345,042.28, 517,563.10 and 155,280.84

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Solution

The fourth proportional to 345,042.28, 517,563.10 and 155,280.84 is: 232,921.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,042.28 : 517,563.10 = 155,280.84 : x
  2. Step 2: Convert to fraction form
    345,042.28/517,563.10 = 155,280.84/x
  3. Step 3: Cross multiply
    345,042.28x = 517,563.10 × 155,280.84
  4. Step 4: Simplify right side
    345,042.28x = 80,367,632,921.00
  5. Step 5: Solve for x
    x = 80,367,632,921.00/345,042.28
  6. Step 6: Final answer
    x = 232,921.12

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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.