Home / 280,140.32-386,582.22-165,456.08

Finding the Fourth Proportional to 280,140.32, 386,582.22 and 165,456.08

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Solution

The fourth proportional to 280,140.32, 386,582.22 and 165,456.08 is: 228,322.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,140.32 : 386,582.22 = 165,456.08 : x
  2. Step 2: Convert to fraction form
    280,140.32/386,582.22 = 165,456.08/x
  3. Step 3: Cross multiply
    280,140.32x = 386,582.22 × 165,456.08
  4. Step 4: Simplify right side
    280,140.32x = 63,962,378,718.90
  5. Step 5: Solve for x
    x = 63,962,378,718.90/280,140.32
  6. Step 6: Final answer
    x = 228,322.64

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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.