Home / 345,278.50-476,508.26-209,318.17

Finding the Fourth Proportional to 345,278.50, 476,508.26 and 209,318.17

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Solution

The fourth proportional to 345,278.50, 476,508.26 and 209,318.17 is: 288,873.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,278.50 : 476,508.26 = 209,318.17 : x
  2. Step 2: Convert to fraction form
    345,278.50/476,508.26 = 209,318.17/x
  3. Step 3: Cross multiply
    345,278.50x = 476,508.26 × 209,318.17
  4. Step 4: Simplify right side
    345,278.50x = 99,741,836,973.08
  5. Step 5: Solve for x
    x = 99,741,836,973.08/345,278.50
  6. Step 6: Final answer
    x = 288,873.58

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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.