Home / 220,516.10-304,312.24-125,022.80

Finding the Fourth Proportional to 220,516.10, 304,312.24 and 125,022.80

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Solution

The fourth proportional to 220,516.10, 304,312.24 and 125,022.80 is: 172,531.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,516.10 : 304,312.24 = 125,022.80 : x
  2. Step 2: Convert to fraction form
    220,516.10/304,312.24 = 125,022.80/x
  3. Step 3: Cross multiply
    220,516.10x = 304,312.24 × 125,022.80
  4. Step 4: Simplify right side
    220,516.10x = 38,045,968,319.07
  5. Step 5: Solve for x
    x = 38,045,968,319.07/220,516.10
  6. Step 6: Final answer
    x = 172,531.48

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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.