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Finding the Fourth Proportional to 295,838.20, 443,757.30 and 85,497.40

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Solution

The fourth proportional to 295,838.20, 443,757.30 and 85,497.40 is: 128,246.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,838.20 : 443,757.30 = 85,497.40 : x
  2. Step 2: Convert to fraction form
    295,838.20/443,757.30 = 85,497.40/x
  3. Step 3: Cross multiply
    295,838.20x = 443,757.30 × 85,497.40
  4. Step 4: Simplify right side
    295,838.20x = 37,940,095,381.02
  5. Step 5: Solve for x
    x = 37,940,095,381.02/295,838.20
  6. Step 6: Final answer
    x = 128,246.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.