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Finding the Fourth Proportional to 252,129.60, 378,064.80 and 94,276.80

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Solution

The fourth proportional to 252,129.60, 378,064.80 and 94,276.80 is: 141,366.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,129.60 : 378,064.80 = 94,276.80 : x
  2. Step 2: Convert to fraction form
    252,129.60/378,064.80 = 94,276.80/x
  3. Step 3: Cross multiply
    252,129.60x = 378,064.80 × 94,276.80
  4. Step 4: Simplify right side
    252,129.60x = 35,642,739,536.64
  5. Step 5: Solve for x
    x = 35,642,739,536.64/252,129.60
  6. Step 6: Final answer
    x = 141,366.74

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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.