Home / 220,501.46-304,283.04-129,861.20

Finding the Fourth Proportional to 220,501.46, 304,283.04 and 129,861.20

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Solution

The fourth proportional to 220,501.46, 304,283.04 and 129,861.20 is: 179,203.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,501.46 : 304,283.04 = 129,861.20 : x
  2. Step 2: Convert to fraction form
    220,501.46/304,283.04 = 129,861.20/x
  3. Step 3: Cross multiply
    220,501.46x = 304,283.04 × 129,861.20
  4. Step 4: Simplify right side
    220,501.46x = 39,514,560,714.05
  5. Step 5: Solve for x
    x = 39,514,560,714.05/220,501.46
  6. Step 6: Final answer
    x = 179,203.17

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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.