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Finding the Fourth Proportional to 442,213.60, 662,931.60 and 264,791.20

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Solution

The fourth proportional to 442,213.60, 662,931.60 and 264,791.20 is: 396,953.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,213.60 : 662,931.60 = 264,791.20 : x
  2. Step 2: Convert to fraction form
    442,213.60/662,931.60 = 264,791.20/x
  3. Step 3: Cross multiply
    442,213.60x = 662,931.60 × 264,791.20
  4. Step 4: Simplify right side
    442,213.60x = 175,538,453,881.92
  5. Step 5: Solve for x
    x = 175,538,453,881.92/442,213.60
  6. Step 6: Final answer
    x = 396,953.99

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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.