Home / 280,747.29-387,501.04-159,960.49

Finding the Fourth Proportional to 280,747.29, 387,501.04 and 159,960.49

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Solution

The fourth proportional to 280,747.29, 387,501.04 and 159,960.49 is: 220,785.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,747.29 : 387,501.04 = 159,960.49 : x
  2. Step 2: Convert to fraction form
    280,747.29/387,501.04 = 159,960.49/x
  3. Step 3: Cross multiply
    280,747.29x = 387,501.04 × 159,960.49
  4. Step 4: Simplify right side
    280,747.29x = 61,984,856,402.86
  5. Step 5: Solve for x
    x = 61,984,856,402.86/280,747.29
  6. Step 6: Final answer
    x = 220,785.24

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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.