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Finding the Fourth Proportional to 292,881.78, 438,821.10 and 159,855.39

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Solution

The fourth proportional to 292,881.78, 438,821.10 and 159,855.39 is: 239,509.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,881.78 : 438,821.10 = 159,855.39 : x
  2. Step 2: Convert to fraction form
    292,881.78/438,821.10 = 159,855.39/x
  3. Step 3: Cross multiply
    292,881.78x = 438,821.10 × 159,855.39
  4. Step 4: Simplify right side
    292,881.78x = 70,147,918,080.73
  5. Step 5: Solve for x
    x = 70,147,918,080.73/292,881.78
  6. Step 6: Final answer
    x = 239,509.33

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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.