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Finding the Fourth Proportional to 260,460.80, 390,691.20 and 94,227.20

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Solution

The fourth proportional to 260,460.80, 390,691.20 and 94,227.20 is: 141,340.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,460.80 : 390,691.20 = 94,227.20 : x
  2. Step 2: Convert to fraction form
    260,460.80/390,691.20 = 94,227.20/x
  3. Step 3: Cross multiply
    260,460.80x = 390,691.20 × 94,227.20
  4. Step 4: Simplify right side
    260,460.80x = 36,813,737,840.64
  5. Step 5: Solve for x
    x = 36,813,737,840.64/260,460.80
  6. Step 6: Final answer
    x = 141,340.80

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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.