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Finding the Fourth Proportional to 495,858.08, 743,801.16 and 121,880

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Solution

The fourth proportional to 495,858.08, 743,801.16 and 121,880 is: 182,823.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,858.08 : 743,801.16 = 121,880 : x
  2. Step 2: Convert to fraction form
    495,858.08/743,801.16 = 121,880/x
  3. Step 3: Cross multiply
    495,858.08x = 743,801.16 × 121,880
  4. Step 4: Simplify right side
    495,858.08x = 90,654,485,380.80
  5. Step 5: Solve for x
    x = 90,654,485,380.80/495,858.08
  6. Step 6: Final answer
    x = 182,823.45

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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.