Home / 288,499.29-398,108.19-159,436.23

Finding the Fourth Proportional to 288,499.29, 398,108.19 and 159,436.23

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Solution

The fourth proportional to 288,499.29, 398,108.19 and 159,436.23 is: 220,010.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,499.29 : 398,108.19 = 159,436.23 : x
  2. Step 2: Convert to fraction form
    288,499.29/398,108.19 = 159,436.23/x
  3. Step 3: Cross multiply
    288,499.29x = 398,108.19 × 159,436.23
  4. Step 4: Simplify right side
    288,499.29x = 63,472,868,945.72
  5. Step 5: Solve for x
    x = 63,472,868,945.72/288,499.29
  6. Step 6: Final answer
    x = 220,010.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.