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Finding the Fourth Proportional to 397,080.15, 547,693.48 and 261,070.62

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Solution

The fourth proportional to 397,080.15, 547,693.48 and 261,070.62 is: 360,095.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,080.15 : 547,693.48 = 261,070.62 : x
  2. Step 2: Convert to fraction form
    397,080.15/547,693.48 = 261,070.62/x
  3. Step 3: Cross multiply
    397,080.15x = 547,693.48 × 261,070.62
  4. Step 4: Simplify right side
    397,080.15x = 142,986,676,393.56
  5. Step 5: Solve for x
    x = 142,986,676,393.56/397,080.15
  6. Step 6: Final answer
    x = 360,095.25

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1.5x scale

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.