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Finding the Fourth Proportional to 372,392.48, 513,833.63 and 243,296.60

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Solution

The fourth proportional to 372,392.48, 513,833.63 and 243,296.60 is: 335,704.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,392.48 : 513,833.63 = 243,296.60 : x
  2. Step 2: Convert to fraction form
    372,392.48/513,833.63 = 243,296.60/x
  3. Step 3: Cross multiply
    372,392.48x = 513,833.63 × 243,296.60
  4. Step 4: Simplify right side
    372,392.48x = 125,013,971,359.01
  5. Step 5: Solve for x
    x = 125,013,971,359.01/372,392.48
  6. Step 6: Final answer
    x = 335,704.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.