Home / 220,612.76-304,405.12-148,120.89

Finding the Fourth Proportional to 220,612.76, 304,405.12 and 148,120.89

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Solution

The fourth proportional to 220,612.76, 304,405.12 and 148,120.89 is: 204,379.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,612.76 : 304,405.12 = 148,120.89 : x
  2. Step 2: Convert to fraction form
    220,612.76/304,405.12 = 148,120.89/x
  3. Step 3: Cross multiply
    220,612.76x = 304,405.12 × 148,120.89
  4. Step 4: Simplify right side
    220,612.76x = 45,088,755,772.93
  5. Step 5: Solve for x
    x = 45,088,755,772.93/220,612.76
  6. Step 6: Final answer
    x = 204,379.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.