Home / 220,516.12-304,312.22-125,022.80

Finding the Fourth Proportional to 220,516.12, 304,312.22 and 125,022.80

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Solution

The fourth proportional to 220,516.12, 304,312.22 and 125,022.80 is: 172,531.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,516.12 : 304,312.22 = 125,022.80 : x
  2. Step 2: Convert to fraction form
    220,516.12/304,312.22 = 125,022.80/x
  3. Step 3: Cross multiply
    220,516.12x = 304,312.22 × 125,022.80
  4. Step 4: Simplify right side
    220,516.12x = 38,045,965,818.62
  5. Step 5: Solve for x
    x = 38,045,965,818.62/220,516.12
  6. Step 6: Final answer
    x = 172,531.45

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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.