Home / 218,723.40-328,085.10-147,864.60

Finding the Fourth Proportional to 218,723.40, 328,085.10 and 147,864.60

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Solution

The fourth proportional to 218,723.40, 328,085.10 and 147,864.60 is: 221,796.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,723.40 : 328,085.10 = 147,864.60 : x
  2. Step 2: Convert to fraction form
    218,723.40/328,085.10 = 147,864.60/x
  3. Step 3: Cross multiply
    218,723.40x = 328,085.10 × 147,864.60
  4. Step 4: Simplify right side
    218,723.40x = 48,512,172,077.46
  5. Step 5: Solve for x
    x = 48,512,172,077.46/218,723.40
  6. Step 6: Final answer
    x = 221,796.90

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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.