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Finding the Fourth Proportional to 292,003.20, 438,004.80 and 125,791.20

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Solution

The fourth proportional to 292,003.20, 438,004.80 and 125,791.20 is: 188,686.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,003.20 : 438,004.80 = 125,791.20 : x
  2. Step 2: Convert to fraction form
    292,003.20/438,004.80 = 125,791.20/x
  3. Step 3: Cross multiply
    292,003.20x = 438,004.80 × 125,791.20
  4. Step 4: Simplify right side
    292,003.20x = 55,097,149,397.76
  5. Step 5: Solve for x
    x = 55,097,149,397.76/292,003.20
  6. Step 6: Final answer
    x = 188,686.80

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1.5x scale

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.