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Finding the Fourth Proportional to 252,818, 379,289.40 and 75,324.32

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Solution

The fourth proportional to 252,818, 379,289.40 and 75,324.32 is: 113,005.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,818 : 379,289.40 = 75,324.32 : x
  2. Step 2: Convert to fraction form
    252,818/379,289.40 = 75,324.32/x
  3. Step 3: Cross multiply
    252,818x = 379,289.40 × 75,324.32
  4. Step 4: Simplify right side
    252,818x = 28,569,716,138.21
  5. Step 5: Solve for x
    x = 28,569,716,138.21/252,818
  6. Step 6: Final answer
    x = 113,005.07

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1.5x scale

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.