Home / 287,258.06-431,083.92-100,269.56

Finding the Fourth Proportional to 287,258.06, 431,083.92 and 100,269.56

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Solution

The fourth proportional to 287,258.06, 431,083.92 and 100,269.56 is: 150,473.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,258.06 : 431,083.92 = 100,269.56 : x
  2. Step 2: Convert to fraction form
    287,258.06/431,083.92 = 100,269.56/x
  3. Step 3: Cross multiply
    287,258.06x = 431,083.92 × 100,269.56
  4. Step 4: Simplify right side
    287,258.06x = 43,224,594,981.48
  5. Step 5: Solve for x
    x = 43,224,594,981.48/287,258.06
  6. Step 6: Final answer
    x = 150,473.04

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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.