Home / 278,124.06-417,185.28-100,630.38

Finding the Fourth Proportional to 278,124.06, 417,185.28 and 100,630.38

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Solution

The fourth proportional to 278,124.06, 417,185.28 and 100,630.38 is: 150,945.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,124.06 : 417,185.28 = 100,630.38 : x
  2. Step 2: Convert to fraction form
    278,124.06/417,185.28 = 100,630.38/x
  3. Step 3: Cross multiply
    278,124.06x = 417,185.28 × 100,630.38
  4. Step 4: Simplify right side
    278,124.06x = 41,981,513,256.81
  5. Step 5: Solve for x
    x = 41,981,513,256.81/278,124.06
  6. Step 6: Final answer
    x = 150,945.28

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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.