Home / 345,116.12-476,187.03-217,717.88

Finding the Fourth Proportional to 345,116.12, 476,187.03 and 217,717.88

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Solution

The fourth proportional to 345,116.12, 476,187.03 and 217,717.88 is: 300,404.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,116.12 : 476,187.03 = 217,717.88 : x
  2. Step 2: Convert to fraction form
    345,116.12/476,187.03 = 217,717.88/x
  3. Step 3: Cross multiply
    345,116.12x = 476,187.03 × 217,717.88
  4. Step 4: Simplify right side
    345,116.12x = 103,674,428,274.16
  5. Step 5: Solve for x
    x = 103,674,428,274.16/345,116.12
  6. Step 6: Final answer
    x = 300,404.48

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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.