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Finding the Fourth Proportional to 220,783.58, 304,663.96 and 125,290.27

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Solution

The fourth proportional to 220,783.58, 304,663.96 and 125,290.27 is: 172,890.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,783.58 : 304,663.96 = 125,290.27 : x
  2. Step 2: Convert to fraction form
    220,783.58/304,663.96 = 125,290.27/x
  3. Step 3: Cross multiply
    220,783.58x = 304,663.96 × 125,290.27
  4. Step 4: Simplify right side
    220,783.58x = 38,171,428,732.78
  5. Step 5: Solve for x
    x = 38,171,428,732.78/220,783.58
  6. Step 6: Final answer
    x = 172,890.71

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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.