Home / 288,979.52-398,792.08-159,923.34

Finding the Fourth Proportional to 288,979.52, 398,792.08 and 159,923.34

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Solution

The fourth proportional to 288,979.52, 398,792.08 and 159,923.34 is: 220,694.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,979.52 : 398,792.08 = 159,923.34 : x
  2. Step 2: Convert to fraction form
    288,979.52/398,792.08 = 159,923.34/x
  3. Step 3: Cross multiply
    288,979.52x = 398,792.08 × 159,923.34
  4. Step 4: Simplify right side
    288,979.52x = 63,776,161,399.15
  5. Step 5: Solve for x
    x = 63,776,161,399.15/288,979.52
  6. Step 6: Final answer
    x = 220,694.40

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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.