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Finding the Fourth Proportional to 220,876.79, 304,801.88 and 134,979.54

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Solution

The fourth proportional to 220,876.79, 304,801.88 and 134,979.54 is: 186,266.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,876.79 : 304,801.88 = 134,979.54 : x
  2. Step 2: Convert to fraction form
    220,876.79/304,801.88 = 134,979.54/x
  3. Step 3: Cross multiply
    220,876.79x = 304,801.88 × 134,979.54
  4. Step 4: Simplify right side
    220,876.79x = 41,142,017,553.54
  5. Step 5: Solve for x
    x = 41,142,017,553.54/220,876.79
  6. Step 6: Final answer
    x = 186,266.83

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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.