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Finding the Fourth Proportional to 292,272.80, 438,927.60 and 225,874.40

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Solution

The fourth proportional to 292,272.80, 438,927.60 and 225,874.40 is: 339,212.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,272.80 : 438,927.60 = 225,874.40 : x
  2. Step 2: Convert to fraction form
    292,272.80/438,927.60 = 225,874.40/x
  3. Step 3: Cross multiply
    292,272.80x = 438,927.60 × 225,874.40
  4. Step 4: Simplify right side
    292,272.80x = 99,142,508,293.44
  5. Step 5: Solve for x
    x = 99,142,508,293.44/292,272.80
  6. Step 6: Final answer
    x = 339,212.23

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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.