Home / 280,932.72-387,673.56-160,102.32

Finding the Fourth Proportional to 280,932.72, 387,673.56 and 160,102.32

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Solution

The fourth proportional to 280,932.72, 387,673.56 and 160,102.32 is: 220,933.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,932.72 : 387,673.56 = 160,102.32 : x
  2. Step 2: Convert to fraction form
    280,932.72/387,673.56 = 160,102.32/x
  3. Step 3: Cross multiply
    280,932.72x = 387,673.56 × 160,102.32
  4. Step 4: Simplify right side
    280,932.72x = 62,067,436,358.66
  5. Step 5: Solve for x
    x = 62,067,436,358.66/280,932.72
  6. Step 6: Final answer
    x = 220,933.45

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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.