Home / 261,282.05-391,881.13-71,698.15

Finding the Fourth Proportional to 261,282.05, 391,881.13 and 71,698.15

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Solution

The fourth proportional to 261,282.05, 391,881.13 and 71,698.15 is: 107,535.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,282.05 : 391,881.13 = 71,698.15 : x
  2. Step 2: Convert to fraction form
    261,282.05/391,881.13 = 71,698.15/x
  3. Step 3: Cross multiply
    261,282.05x = 391,881.13 × 71,698.15
  4. Step 4: Simplify right side
    261,282.05x = 28,097,150,714.89
  5. Step 5: Solve for x
    x = 28,097,150,714.89/261,282.05
  6. Step 6: Final answer
    x = 107,535.71

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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.