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Finding the Fourth Proportional to 353,431.16, 488,029.30 and 327,788.18

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Solution

The fourth proportional to 353,431.16, 488,029.30 and 327,788.18 is: 452,620.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,431.16 : 488,029.30 = 327,788.18 : x
  2. Step 2: Convert to fraction form
    353,431.16/488,029.30 = 327,788.18/x
  3. Step 3: Cross multiply
    353,431.16x = 488,029.30 × 327,788.18
  4. Step 4: Simplify right side
    353,431.16x = 159,970,236,033.67
  5. Step 5: Solve for x
    x = 159,970,236,033.67/353,431.16
  6. Step 6: Final answer
    x = 452,620.63

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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.