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Finding the Fourth Proportional to 353,340.64, 487,883.78 and 271,539.32

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Solution

The fourth proportional to 353,340.64, 487,883.78 and 271,539.32 is: 374,934.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,340.64 : 487,883.78 = 271,539.32 : x
  2. Step 2: Convert to fraction form
    353,340.64/487,883.78 = 271,539.32/x
  3. Step 3: Cross multiply
    353,340.64x = 487,883.78 × 271,539.32
  4. Step 4: Simplify right side
    353,340.64x = 132,479,632,647.70
  5. Step 5: Solve for x
    x = 132,479,632,647.70/353,340.64
  6. Step 6: Final answer
    x = 374,934.60

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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.