Home / 345,331.14-476,578.92-209,378.10

Finding the Fourth Proportional to 345,331.14, 476,578.92 and 209,378.10

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Solution

The fourth proportional to 345,331.14, 476,578.92 and 209,378.10 is: 288,955.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,331.14 : 476,578.92 = 209,378.10 : x
  2. Step 2: Convert to fraction form
    345,331.14/476,578.92 = 209,378.10/x
  3. Step 3: Cross multiply
    345,331.14x = 476,578.92 × 209,378.10
  4. Step 4: Simplify right side
    345,331.14x = 99,785,188,769.65
  5. Step 5: Solve for x
    x = 99,785,188,769.65/345,331.14
  6. Step 6: Final answer
    x = 288,955.08

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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.