Home / 207,254.20-311,342.10-199,420.60

Finding the Fourth Proportional to 207,254.20, 311,342.10 and 199,420.60

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Solution

The fourth proportional to 207,254.20, 311,342.10 and 199,420.60 is: 299,574.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,254.20 : 311,342.10 = 199,420.60 : x
  2. Step 2: Convert to fraction form
    207,254.20/311,342.10 = 199,420.60/x
  3. Step 3: Cross multiply
    207,254.20x = 311,342.10 × 199,420.60
  4. Step 4: Simplify right side
    207,254.20x = 62,088,028,387.26
  5. Step 5: Solve for x
    x = 62,088,028,387.26/207,254.20
  6. Step 6: Final answer
    x = 299,574.28

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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.