Home / 209,320.39-288,853.42-118,682.48

Finding the Fourth Proportional to 209,320.39, 288,853.42 and 118,682.48

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Solution

The fourth proportional to 209,320.39, 288,853.42 and 118,682.48 is: 163,776.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,320.39 : 288,853.42 = 118,682.48 : x
  2. Step 2: Convert to fraction form
    209,320.39/288,853.42 = 118,682.48/x
  3. Step 3: Cross multiply
    209,320.39x = 288,853.42 × 118,682.48
  4. Step 4: Simplify right side
    209,320.39x = 34,281,839,648.67
  5. Step 5: Solve for x
    x = 34,281,839,648.67/209,320.39
  6. Step 6: Final answer
    x = 163,776.88

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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.