Home / 280,934.08-387,714.35-160,114.29

Finding the Fourth Proportional to 280,934.08, 387,714.35 and 160,114.29

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Solution

The fourth proportional to 280,934.08, 387,714.35 and 160,114.29 is: 220,972.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,934.08 : 387,714.35 = 160,114.29 : x
  2. Step 2: Convert to fraction form
    280,934.08/387,714.35 = 160,114.29/x
  3. Step 3: Cross multiply
    280,934.08x = 387,714.35 × 160,114.29
  4. Step 4: Simplify right side
    280,934.08x = 62,078,606,016.47
  5. Step 5: Solve for x
    x = 62,078,606,016.47/280,934.08
  6. Step 6: Final answer
    x = 220,972.15

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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.