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Finding the Fourth Proportional to 356,218.20, 535,104.90 and 251,242.20

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Solution

The fourth proportional to 356,218.20, 535,104.90 and 251,242.20 is: 377,411.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,218.20 : 535,104.90 = 251,242.20 : x
  2. Step 2: Convert to fraction form
    356,218.20/535,104.90 = 251,242.20/x
  3. Step 3: Cross multiply
    356,218.20x = 535,104.90 × 251,242.20
  4. Step 4: Simplify right side
    356,218.20x = 134,440,932,306.78
  5. Step 5: Solve for x
    x = 134,440,932,306.78/356,218.20
  6. Step 6: Final answer
    x = 377,411.74

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1.5x scale

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.