Home / 218,819.34-302,053.71-147,240.87

Finding the Fourth Proportional to 218,819.34, 302,053.71 and 147,240.87

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Solution

The fourth proportional to 218,819.34, 302,053.71 and 147,240.87 is: 203,248.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,819.34 : 302,053.71 = 147,240.87 : x
  2. Step 2: Convert to fraction form
    218,819.34/302,053.71 = 147,240.87/x
  3. Step 3: Cross multiply
    218,819.34x = 302,053.71 × 147,240.87
  4. Step 4: Simplify right side
    218,819.34x = 44,474,651,047.13
  5. Step 5: Solve for x
    x = 44,474,651,047.13/218,819.34
  6. Step 6: Final answer
    x = 203,248.26

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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.