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Finding the Fourth Proportional to 293,708.65, 440,070.90 and 251,390.20

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Solution

The fourth proportional to 293,708.65, 440,070.90 and 251,390.20 is: 376,664.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,708.65 : 440,070.90 = 251,390.20 : x
  2. Step 2: Convert to fraction form
    293,708.65/440,070.90 = 251,390.20/x
  3. Step 3: Cross multiply
    293,708.65x = 440,070.90 × 251,390.20
  4. Step 4: Simplify right side
    293,708.65x = 110,629,511,565.18
  5. Step 5: Solve for x
    x = 110,629,511,565.18/293,708.65
  6. Step 6: Final answer
    x = 376,664.12

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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.