Home / 280,841.28-387,763.92-173,558.40

Finding the Fourth Proportional to 280,841.28, 387,763.92 and 173,558.40

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Solution

The fourth proportional to 280,841.28, 387,763.92 and 173,558.40 is: 239,636.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,841.28 : 387,763.92 = 173,558.40 : x
  2. Step 2: Convert to fraction form
    280,841.28/387,763.92 = 173,558.40/x
  3. Step 3: Cross multiply
    280,841.28x = 387,763.92 × 173,558.40
  4. Step 4: Simplify right side
    280,841.28x = 67,299,685,532.93
  5. Step 5: Solve for x
    x = 67,299,685,532.93/280,841.28
  6. Step 6: Final answer
    x = 239,636.02

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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.