Home / 220,620.78-304,459.65-125,125.38

Finding the Fourth Proportional to 220,620.78, 304,459.65 and 125,125.38

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Solution

The fourth proportional to 220,620.78, 304,459.65 and 125,125.38 is: 172,674.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,620.78 : 304,459.65 = 125,125.38 : x
  2. Step 2: Convert to fraction form
    220,620.78/304,459.65 = 125,125.38/x
  3. Step 3: Cross multiply
    220,620.78x = 304,459.65 × 125,125.38
  4. Step 4: Simplify right side
    220,620.78x = 38,095,629,400.92
  5. Step 5: Solve for x
    x = 38,095,629,400.92/220,620.78
  6. Step 6: Final answer
    x = 172,674.71

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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.