Home / 280,618.68-387,261.36-167,507.04

Finding the Fourth Proportional to 280,618.68, 387,261.36 and 167,507.04

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Solution

The fourth proportional to 280,618.68, 387,261.36 and 167,507.04 is: 231,164.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,618.68 : 387,261.36 = 167,507.04 : x
  2. Step 2: Convert to fraction form
    280,618.68/387,261.36 = 167,507.04/x
  3. Step 3: Cross multiply
    280,618.68x = 387,261.36 × 167,507.04
  4. Step 4: Simplify right side
    280,618.68x = 64,869,004,119.97
  5. Step 5: Solve for x
    x = 64,869,004,119.97/280,618.68
  6. Step 6: Final answer
    x = 231,164.24

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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.