Home / 280,975.92-387,743.04-160,124.40

Finding the Fourth Proportional to 280,975.92, 387,743.04 and 160,124.40

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Solution

The fourth proportional to 280,975.92, 387,743.04 and 160,124.40 is: 220,969.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,975.92 : 387,743.04 = 160,124.40 : x
  2. Step 2: Convert to fraction form
    280,975.92/387,743.04 = 160,124.40/x
  3. Step 3: Cross multiply
    280,975.92x = 387,743.04 × 160,124.40
  4. Step 4: Simplify right side
    280,975.92x = 62,087,121,634.18
  5. Step 5: Solve for x
    x = 62,087,121,634.18/280,975.92
  6. Step 6: Final answer
    x = 220,969.55

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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.