Home / 280,837.53-387,758.76-173,554.65

Finding the Fourth Proportional to 280,837.53, 387,758.76 and 173,554.65

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Solution

The fourth proportional to 280,837.53, 387,758.76 and 173,554.65 is: 239,630.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,837.53 : 387,758.76 = 173,554.65 : x
  2. Step 2: Convert to fraction form
    280,837.53/387,758.76 = 173,554.65/x
  3. Step 3: Cross multiply
    280,837.53x = 387,758.76 × 173,554.65
  4. Step 4: Simplify right side
    280,837.53x = 67,297,335,876.23
  5. Step 5: Solve for x
    x = 67,297,335,876.23/280,837.53
  6. Step 6: Final answer
    x = 239,630.85

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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.