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Finding the Fourth Proportional to 119,305.20, 178,957.80 and 40,400.40

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Solution

The fourth proportional to 119,305.20, 178,957.80 and 40,400.40 is: 60,600.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,305.20 : 178,957.80 = 40,400.40 : x
  2. Step 2: Convert to fraction form
    119,305.20/178,957.80 = 40,400.40/x
  3. Step 3: Cross multiply
    119,305.20x = 178,957.80 × 40,400.40
  4. Step 4: Simplify right side
    119,305.20x = 7,229,966,703.12
  5. Step 5: Solve for x
    x = 7,229,966,703.12/119,305.20
  6. Step 6: Final answer
    x = 60,600.60

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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.