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Finding the Fourth Proportional to 278,135.68, 417,065.51 and 88,571.34

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Solution

The fourth proportional to 278,135.68, 417,065.51 and 88,571.34 is: 132,813.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,135.68 : 417,065.51 = 88,571.34 : x
  2. Step 2: Convert to fraction form
    278,135.68/417,065.51 = 88,571.34/x
  3. Step 3: Cross multiply
    278,135.68x = 417,065.51 × 88,571.34
  4. Step 4: Simplify right side
    278,135.68x = 36,940,051,088.48
  5. Step 5: Solve for x
    x = 36,940,051,088.48/278,135.68
  6. Step 6: Final answer
    x = 132,813.06

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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.