Home / 280,832.25-387,548.52-153,508.35

Finding the Fourth Proportional to 280,832.25, 387,548.52 and 153,508.35

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Solution

The fourth proportional to 280,832.25, 387,548.52 and 153,508.35 is: 211,841.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,832.25 : 387,548.52 = 153,508.35 : x
  2. Step 2: Convert to fraction form
    280,832.25/387,548.52 = 153,508.35/x
  3. Step 3: Cross multiply
    280,832.25x = 387,548.52 × 153,508.35
  4. Step 4: Simplify right side
    280,832.25x = 59,491,933,850.14
  5. Step 5: Solve for x
    x = 59,491,933,850.14/280,832.25
  6. Step 6: Final answer
    x = 211,841.53

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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.