Home / 205,376.40-307,634.85-165,178.13

Finding the Fourth Proportional to 205,376.40, 307,634.85 and 165,178.13

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Solution

The fourth proportional to 205,376.40, 307,634.85 and 165,178.13 is: 247,421.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,376.40 : 307,634.85 = 165,178.13 : x
  2. Step 2: Convert to fraction form
    205,376.40/307,634.85 = 165,178.13/x
  3. Step 3: Cross multiply
    205,376.40x = 307,634.85 × 165,178.13
  4. Step 4: Simplify right side
    205,376.40x = 50,814,547,707.66
  5. Step 5: Solve for x
    x = 50,814,547,707.66/205,376.40
  6. Step 6: Final answer
    x = 247,421.55

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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.