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Finding the Fourth Proportional to 360,989.12, 497,863.86 and 270,560.72

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Solution

The fourth proportional to 360,989.12, 497,863.86 and 270,560.72 is: 373,148.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,989.12 : 497,863.86 = 270,560.72 : x
  2. Step 2: Convert to fraction form
    360,989.12/497,863.86 = 270,560.72/x
  3. Step 3: Cross multiply
    360,989.12x = 497,863.86 × 270,560.72
  4. Step 4: Simplify right side
    360,989.12x = 134,702,404,423.58
  5. Step 5: Solve for x
    x = 134,702,404,423.58/360,989.12
  6. Step 6: Final answer
    x = 373,148.10

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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.