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Finding the Fourth Proportional to 146,044.80, 218,010.74 and 128,330.10

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Solution

The fourth proportional to 146,044.80, 218,010.74 and 128,330.10 is: 191,566.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,044.80 : 218,010.74 = 128,330.10 : x
  2. Step 2: Convert to fraction form
    146,044.80/218,010.74 = 128,330.10/x
  3. Step 3: Cross multiply
    146,044.80x = 218,010.74 × 128,330.10
  4. Step 4: Simplify right side
    146,044.80x = 27,977,339,423.62
  5. Step 5: Solve for x
    x = 27,977,339,423.62/146,044.80
  6. Step 6: Final answer
    x = 191,566.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.