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Finding the Fourth Proportional to 353,424.29, 488,019.80 and 327,781.31

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Solution

The fourth proportional to 353,424.29, 488,019.80 and 327,781.31 is: 452,611.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,424.29 : 488,019.80 = 327,781.31 : x
  2. Step 2: Convert to fraction form
    353,424.29/488,019.80 = 327,781.31/x
  3. Step 3: Cross multiply
    353,424.29x = 488,019.80 × 327,781.31
  4. Step 4: Simplify right side
    353,424.29x = 159,963,767,729.29
  5. Step 5: Solve for x
    x = 159,963,767,729.29/353,424.29
  6. Step 6: Final answer
    x = 452,611.14

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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.