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Finding the Fourth Proportional to 220,940.12, 304,899.42 and 125,448.86

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Solution

The fourth proportional to 220,940.12, 304,899.42 and 125,448.86 is: 173,120.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,940.12 : 304,899.42 = 125,448.86 : x
  2. Step 2: Convert to fraction form
    220,940.12/304,899.42 = 125,448.86/x
  3. Step 3: Cross multiply
    220,940.12x = 304,899.42 × 125,448.86
  4. Step 4: Simplify right side
    220,940.12x = 38,249,283,129.16
  5. Step 5: Solve for x
    x = 38,249,283,129.16/220,940.12
  6. Step 6: Final answer
    x = 173,120.59

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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.