Home / 345,270.47-476,497.19-209,310.14

Finding the Fourth Proportional to 345,270.47, 476,497.19 and 209,310.14

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Solution

The fourth proportional to 345,270.47, 476,497.19 and 209,310.14 is: 288,862.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,270.47 : 476,497.19 = 209,310.14 : x
  2. Step 2: Convert to fraction form
    345,270.47/476,497.19 = 209,310.14/x
  3. Step 3: Cross multiply
    345,270.47x = 476,497.19 × 209,310.14
  4. Step 4: Simplify right side
    345,270.47x = 99,735,693,693.20
  5. Step 5: Solve for x
    x = 99,735,693,693.20/345,270.47
  6. Step 6: Final answer
    x = 288,862.51

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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.