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Finding the Fourth Proportional to 385,883.66, 532,253.70 and 271,405.15

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Solution

The fourth proportional to 385,883.66, 532,253.70 and 271,405.15 is: 374,352.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,883.66 : 532,253.70 = 271,405.15 : x
  2. Step 2: Convert to fraction form
    385,883.66/532,253.70 = 271,405.15/x
  3. Step 3: Cross multiply
    385,883.66x = 532,253.70 × 271,405.15
  4. Step 4: Simplify right side
    385,883.66x = 144,456,393,955.92
  5. Step 5: Solve for x
    x = 144,456,393,955.92/385,883.66
  6. Step 6: Final answer
    x = 374,352.19

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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.