Home / 278,365.32-417,343.50-88,716.56

Finding the Fourth Proportional to 278,365.32, 417,343.50 and 88,716.56

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Solution

The fourth proportional to 278,365.32, 417,343.50 and 88,716.56 is: 133,009.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,365.32 : 417,343.50 = 88,716.56 : x
  2. Step 2: Convert to fraction form
    278,365.32/417,343.50 = 88,716.56/x
  3. Step 3: Cross multiply
    278,365.32x = 417,343.50 × 88,716.56
  4. Step 4: Simplify right side
    278,365.32x = 37,025,277,571.64
  5. Step 5: Solve for x
    x = 37,025,277,571.64/278,365.32
  6. Step 6: Final answer
    x = 133,009.66

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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.