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Finding the Fourth Proportional to 292,287.80, 438,546.90 and 114,764.60

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Solution

The fourth proportional to 292,287.80, 438,546.90 and 114,764.60 is: 172,192.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,287.80 : 438,546.90 = 114,764.60 : x
  2. Step 2: Convert to fraction form
    292,287.80/438,546.90 = 114,764.60/x
  3. Step 3: Cross multiply
    292,287.80x = 438,546.90 × 114,764.60
  4. Step 4: Simplify right side
    292,287.80x = 50,329,659,559.74
  5. Step 5: Solve for x
    x = 50,329,659,559.74/292,287.80
  6. Step 6: Final answer
    x = 172,192.13

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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.