Home / 280,010.10-386,443.53-171,178.14

Finding the Fourth Proportional to 280,010.10, 386,443.53 and 171,178.14

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Solution

The fourth proportional to 280,010.10, 386,443.53 and 171,178.14 is: 236,243.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,010.10 : 386,443.53 = 171,178.14 : x
  2. Step 2: Convert to fraction form
    280,010.10/386,443.53 = 171,178.14/x
  3. Step 3: Cross multiply
    280,010.10x = 386,443.53 × 171,178.14
  4. Step 4: Simplify right side
    280,010.10x = 66,150,684,680.43
  5. Step 5: Solve for x
    x = 66,150,684,680.43/280,010.10
  6. Step 6: Final answer
    x = 236,243.92

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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.