Home / 218,920.32-302,359.23-147,175.79

Finding the Fourth Proportional to 218,920.32, 302,359.23 and 147,175.79

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Solution

The fourth proportional to 218,920.32, 302,359.23 and 147,175.79 is: 203,270.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,920.32 : 302,359.23 = 147,175.79 : x
  2. Step 2: Convert to fraction form
    218,920.32/302,359.23 = 147,175.79/x
  3. Step 3: Cross multiply
    218,920.32x = 302,359.23 × 147,175.79
  4. Step 4: Simplify right side
    218,920.32x = 44,499,957,027.25
  5. Step 5: Solve for x
    x = 44,499,957,027.25/218,920.32
  6. Step 6: Final answer
    x = 203,270.11

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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.