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Finding the Fourth Proportional to 292,879.78, 438,818.10 and 159,853.39

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Solution

The fourth proportional to 292,879.78, 438,818.10 and 159,853.39 is: 239,506.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,879.78 : 438,818.10 = 159,853.39 : x
  2. Step 2: Convert to fraction form
    292,879.78/438,818.10 = 159,853.39/x
  3. Step 3: Cross multiply
    292,879.78x = 438,818.10 × 159,853.39
  4. Step 4: Simplify right side
    292,879.78x = 70,146,560,878.36
  5. Step 5: Solve for x
    x = 70,146,560,878.36/292,879.78
  6. Step 6: Final answer
    x = 239,506.33

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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.