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Finding the Fourth Proportional to 154,816.85, 216,481.15 and 154,816.85

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Solution

The fourth proportional to 154,816.85, 216,481.15 and 154,816.85 is: 216,481.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,816.85 : 216,481.15 = 154,816.85 : x
  2. Step 2: Convert to fraction form
    154,816.85/216,481.15 = 154,816.85/x
  3. Step 3: Cross multiply
    154,816.85x = 216,481.15 × 154,816.85
  4. Step 4: Simplify right side
    154,816.85x = 33,514,929,727.38
  5. Step 5: Solve for x
    x = 33,514,929,727.38/154,816.85
  6. Step 6: Final answer
    x = 216,481.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.