Home / 253,234.20-379,851.30-103,376.10

Finding the Fourth Proportional to 253,234.20, 379,851.30 and 103,376.10

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Solution

The fourth proportional to 253,234.20, 379,851.30 and 103,376.10 is: 155,064.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,234.20 : 379,851.30 = 103,376.10 : x
  2. Step 2: Convert to fraction form
    253,234.20/379,851.30 = 103,376.10/x
  3. Step 3: Cross multiply
    253,234.20x = 379,851.30 × 103,376.10
  4. Step 4: Simplify right side
    253,234.20x = 39,267,545,973.93
  5. Step 5: Solve for x
    x = 39,267,545,973.93/253,234.20
  6. Step 6: Final answer
    x = 155,064.15

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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.