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Finding the Fourth Proportional to 341,002.28, 511,818.90 and 172,640.90

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Solution

The fourth proportional to 341,002.28, 511,818.90 and 172,640.90 is: 259,121.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,002.28 : 511,818.90 = 172,640.90 : x
  2. Step 2: Convert to fraction form
    341,002.28/511,818.90 = 172,640.90/x
  3. Step 3: Cross multiply
    341,002.28x = 511,818.90 × 172,640.90
  4. Step 4: Simplify right side
    341,002.28x = 88,360,875,533.01
  5. Step 5: Solve for x
    x = 88,360,875,533.01/341,002.28
  6. Step 6: Final answer
    x = 259,121.07

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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.