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Finding the Fourth Proportional to 146,218.30, 218,809.05 and 99,562.30

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Solution

The fourth proportional to 146,218.30, 218,809.05 and 99,562.30 is: 148,990.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,218.30 : 218,809.05 = 99,562.30 : x
  2. Step 2: Convert to fraction form
    146,218.30/218,809.05 = 99,562.30/x
  3. Step 3: Cross multiply
    146,218.30x = 218,809.05 × 99,562.30
  4. Step 4: Simplify right side
    146,218.30x = 21,785,132,278.82
  5. Step 5: Solve for x
    x = 21,785,132,278.82/146,218.30
  6. Step 6: Final answer
    x = 148,990.46

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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.