Home / 399,720.32-599,566.18-100,203.36

Finding the Fourth Proportional to 399,720.32, 599,566.18 and 100,203.36

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Solution

The fourth proportional to 399,720.32, 599,566.18 and 100,203.36 is: 150,301.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,720.32 : 599,566.18 = 100,203.36 : x
  2. Step 2: Convert to fraction form
    399,720.32/599,566.18 = 100,203.36/x
  3. Step 3: Cross multiply
    399,720.32x = 599,566.18 × 100,203.36
  4. Step 4: Simplify right side
    399,720.32x = 60,078,545,778.36
  5. Step 5: Solve for x
    x = 60,078,545,778.36/399,720.32
  6. Step 6: Final answer
    x = 150,301.46

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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.