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Finding the Fourth Proportional to 492,044.80, 737,966.40 and 136,969.60

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Solution

The fourth proportional to 492,044.80, 737,966.40 and 136,969.60 is: 205,426.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,044.80 : 737,966.40 = 136,969.60 : x
  2. Step 2: Convert to fraction form
    492,044.80/737,966.40 = 136,969.60/x
  3. Step 3: Cross multiply
    492,044.80x = 737,966.40 × 136,969.60
  4. Step 4: Simplify right side
    492,044.80x = 101,078,962,621.44
  5. Step 5: Solve for x
    x = 101,078,962,621.44/492,044.80
  6. Step 6: Final answer
    x = 205,426.34

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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.