Home / 280,209.27-386,788.53-165,488.37

Finding the Fourth Proportional to 280,209.27, 386,788.53 and 165,488.37

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Solution

The fourth proportional to 280,209.27, 386,788.53 and 165,488.37 is: 228,432.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,209.27 : 386,788.53 = 165,488.37 : x
  2. Step 2: Convert to fraction form
    280,209.27/386,788.53 = 165,488.37/x
  3. Step 3: Cross multiply
    280,209.27x = 386,788.53 × 165,488.37
  4. Step 4: Simplify right side
    280,209.27x = 64,009,003,364.40
  5. Step 5: Solve for x
    x = 64,009,003,364.40/280,209.27
  6. Step 6: Final answer
    x = 228,432.85

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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.