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Finding the Fourth Proportional to 181,478.80, 272,218.20 and 102,746.80

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Solution

The fourth proportional to 181,478.80, 272,218.20 and 102,746.80 is: 154,120.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,478.80 : 272,218.20 = 102,746.80 : x
  2. Step 2: Convert to fraction form
    181,478.80/272,218.20 = 102,746.80/x
  3. Step 3: Cross multiply
    181,478.80x = 272,218.20 × 102,746.80
  4. Step 4: Simplify right side
    181,478.80x = 27,969,548,951.76
  5. Step 5: Solve for x
    x = 27,969,548,951.76/181,478.80
  6. Step 6: Final answer
    x = 154,120.20

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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.