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Finding the Fourth Proportional to 292,514.70, 438,772.05 and 126,302.70

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Solution

The fourth proportional to 292,514.70, 438,772.05 and 126,302.70 is: 189,454.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,514.70 : 438,772.05 = 126,302.70 : x
  2. Step 2: Convert to fraction form
    292,514.70/438,772.05 = 126,302.70/x
  3. Step 3: Cross multiply
    292,514.70x = 438,772.05 × 126,302.70
  4. Step 4: Simplify right side
    292,514.70x = 55,418,094,599.54
  5. Step 5: Solve for x
    x = 55,418,094,599.54/292,514.70
  6. Step 6: Final answer
    x = 189,454.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.