Home / 280,880.28-387,577.92-167,679

Finding the Fourth Proportional to 280,880.28, 387,577.92 and 167,679

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Solution

The fourth proportional to 280,880.28, 387,577.92 and 167,679 is: 231,375.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,880.28 : 387,577.92 = 167,679 : x
  2. Step 2: Convert to fraction form
    280,880.28/387,577.92 = 167,679/x
  3. Step 3: Cross multiply
    280,880.28x = 387,577.92 × 167,679
  4. Step 4: Simplify right side
    280,880.28x = 64,988,678,047.68
  5. Step 5: Solve for x
    x = 64,988,678,047.68/280,880.28
  6. Step 6: Final answer
    x = 231,375.01

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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.