Home / 205,582.56-308,642.40-165,077.70

Finding the Fourth Proportional to 205,582.56, 308,642.40 and 165,077.70

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Solution

The fourth proportional to 205,582.56, 308,642.40 and 165,077.70 is: 247,832.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,582.56 : 308,642.40 = 165,077.70 : x
  2. Step 2: Convert to fraction form
    205,582.56/308,642.40 = 165,077.70/x
  3. Step 3: Cross multiply
    205,582.56x = 308,642.40 × 165,077.70
  4. Step 4: Simplify right side
    205,582.56x = 50,949,976,357.07
  5. Step 5: Solve for x
    x = 50,949,976,357.07/205,582.56
  6. Step 6: Final answer
    x = 247,832.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.