Home / 280,396.26-386,901.18-165,659.04

Finding the Fourth Proportional to 280,396.26, 386,901.18 and 165,659.04

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Solution

The fourth proportional to 280,396.26, 386,901.18 and 165,659.04 is: 228,582.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,396.26 : 386,901.18 = 165,659.04 : x
  2. Step 2: Convert to fraction form
    280,396.26/386,901.18 = 165,659.04/x
  3. Step 3: Cross multiply
    280,396.26x = 386,901.18 × 165,659.04
  4. Step 4: Simplify right side
    280,396.26x = 64,093,678,053.67
  5. Step 5: Solve for x
    x = 64,093,678,053.67/280,396.26
  6. Step 6: Final answer
    x = 228,582.50

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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.