Home / 280,843.53-387,767.04-173,560.65

Finding the Fourth Proportional to 280,843.53, 387,767.04 and 173,560.65

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Solution

The fourth proportional to 280,843.53, 387,767.04 and 173,560.65 is: 239,639.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,843.53 : 387,767.04 = 173,560.65 : x
  2. Step 2: Convert to fraction form
    280,843.53/387,767.04 = 173,560.65/x
  3. Step 3: Cross multiply
    280,843.53x = 387,767.04 × 173,560.65
  4. Step 4: Simplify right side
    280,843.53x = 67,301,099,510.98
  5. Step 5: Solve for x
    x = 67,301,099,510.98/280,843.53
  6. Step 6: Final answer
    x = 239,639.13

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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.