Home / 351,470.30-527,205.45-257,467.10

Finding the Fourth Proportional to 351,470.30, 527,205.45 and 257,467.10

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Solution

The fourth proportional to 351,470.30, 527,205.45 and 257,467.10 is: 386,200.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,470.30 : 527,205.45 = 257,467.10 : x
  2. Step 2: Convert to fraction form
    351,470.30/527,205.45 = 257,467.10/x
  3. Step 3: Cross multiply
    351,470.30x = 527,205.45 × 257,467.10
  4. Step 4: Simplify right side
    351,470.30x = 135,738,058,315.70
  5. Step 5: Solve for x
    x = 135,738,058,315.70/351,470.30
  6. Step 6: Final answer
    x = 386,200.65

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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.