Home / 261,323.62-391,984.66-71,784.18

Finding the Fourth Proportional to 261,323.62, 391,984.66 and 71,784.18

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Solution

The fourth proportional to 261,323.62, 391,984.66 and 71,784.18 is: 107,676.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,323.62 : 391,984.66 = 71,784.18 : x
  2. Step 2: Convert to fraction form
    261,323.62/391,984.66 = 71,784.18/x
  3. Step 3: Cross multiply
    261,323.62x = 391,984.66 × 71,784.18
  4. Step 4: Simplify right side
    261,323.62x = 28,138,298,215.38
  5. Step 5: Solve for x
    x = 28,138,298,215.38/261,323.62
  6. Step 6: Final answer
    x = 107,676.06

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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.