Home / 278,225.07-417,367.67-88,640.73

Finding the Fourth Proportional to 278,225.07, 417,367.67 and 88,640.73

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Solution

The fourth proportional to 278,225.07, 417,367.67 and 88,640.73 is: 132,970.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,225.07 : 417,367.67 = 88,640.73 : x
  2. Step 2: Convert to fraction form
    278,225.07/417,367.67 = 88,640.73/x
  3. Step 3: Cross multiply
    278,225.07x = 417,367.67 × 88,640.73
  4. Step 4: Simplify right side
    278,225.07x = 36,995,774,504.00
  5. Step 5: Solve for x
    x = 36,995,774,504.00/278,225.07
  6. Step 6: Final answer
    x = 132,970.67

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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.