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Finding the Fourth Proportional to 220,767.78, 304,651.08 and 125,268.78

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Solution

The fourth proportional to 220,767.78, 304,651.08 and 125,268.78 is: 172,866.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,767.78 : 304,651.08 = 125,268.78 : x
  2. Step 2: Convert to fraction form
    220,767.78/304,651.08 = 125,268.78/x
  3. Step 3: Cross multiply
    220,767.78x = 304,651.08 × 125,268.78
  4. Step 4: Simplify right side
    220,767.78x = 38,163,269,117.28
  5. Step 5: Solve for x
    x = 38,163,269,117.28/220,767.78
  6. Step 6: Final answer
    x = 172,866.12

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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.