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Finding the Fourth Proportional to 351,282.29, 526,924.80 and 85,042.40

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Solution

The fourth proportional to 351,282.29, 526,924.80 and 85,042.40 is: 127,563.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,282.29 : 526,924.80 = 85,042.40 : x
  2. Step 2: Convert to fraction form
    351,282.29/526,924.80 = 85,042.40/x
  3. Step 3: Cross multiply
    351,282.29x = 526,924.80 × 85,042.40
  4. Step 4: Simplify right side
    351,282.29x = 44,810,946,976.90
  5. Step 5: Solve for x
    x = 44,810,946,976.90/351,282.29
  6. Step 6: Final answer
    x = 127,563.92

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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.