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Finding the Fourth Proportional to 260,875.78, 391,294.54 and 83,335.12

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Solution

The fourth proportional to 260,875.78, 391,294.54 and 83,335.12 is: 124,996.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,875.78 : 391,294.54 = 83,335.12 : x
  2. Step 2: Convert to fraction form
    260,875.78/391,294.54 = 83,335.12/x
  3. Step 3: Cross multiply
    260,875.78x = 391,294.54 × 83,335.12
  4. Step 4: Simplify right side
    260,875.78x = 32,608,578,538.83
  5. Step 5: Solve for x
    x = 32,608,578,538.83/260,875.78
  6. Step 6: Final answer
    x = 124,996.57

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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.