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Finding the Fourth Proportional to 543,340.90, 815,007.30 and 164,260.90

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Solution

The fourth proportional to 543,340.90, 815,007.30 and 164,260.90 is: 246,390.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,340.90 : 815,007.30 = 164,260.90 : x
  2. Step 2: Convert to fraction form
    543,340.90/815,007.30 = 164,260.90/x
  3. Step 3: Cross multiply
    543,340.90x = 815,007.30 × 164,260.90
  4. Step 4: Simplify right side
    543,340.90x = 133,873,832,604.57
  5. Step 5: Solve for x
    x = 133,873,832,604.57/543,340.90
  6. Step 6: Final answer
    x = 246,390.13

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1.5x scale

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.