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Finding the Fourth Proportional to 292,880.78, 438,819.60 and 159,854.39

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Solution

The fourth proportional to 292,880.78, 438,819.60 and 159,854.39 is: 239,507.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,880.78 : 438,819.60 = 159,854.39 : x
  2. Step 2: Convert to fraction form
    292,880.78/438,819.60 = 159,854.39/x
  3. Step 3: Cross multiply
    292,880.78x = 438,819.60 × 159,854.39
  4. Step 4: Simplify right side
    292,880.78x = 70,147,239,478.04
  5. Step 5: Solve for x
    x = 70,147,239,478.04/292,880.78
  6. Step 6: Final answer
    x = 239,507.83

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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.