Home / 436,190.31-654,390.02-211,287.88

Finding the Fourth Proportional to 436,190.31, 654,390.02 and 211,287.88

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Solution

The fourth proportional to 436,190.31, 654,390.02 and 211,287.88 is: 316,982.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,190.31 : 654,390.02 = 211,287.88 : x
  2. Step 2: Convert to fraction form
    436,190.31/654,390.02 = 211,287.88/x
  3. Step 3: Cross multiply
    436,190.31x = 654,390.02 × 211,287.88
  4. Step 4: Simplify right side
    436,190.31x = 138,264,681,365.17
  5. Step 5: Solve for x
    x = 138,264,681,365.17/436,190.31
  6. Step 6: Final answer
    x = 316,982.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.