Home / 261,422.12-392,015.82-74,389.16

Finding the Fourth Proportional to 261,422.12, 392,015.82 and 74,389.16

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Solution

The fourth proportional to 261,422.12, 392,015.82 and 74,389.16 is: 111,550.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,422.12 : 392,015.82 = 74,389.16 : x
  2. Step 2: Convert to fraction form
    261,422.12/392,015.82 = 74,389.16/x
  3. Step 3: Cross multiply
    261,422.12x = 392,015.82 × 74,389.16
  4. Step 4: Simplify right side
    261,422.12x = 29,161,727,556.51
  5. Step 5: Solve for x
    x = 29,161,727,556.51/261,422.12
  6. Step 6: Final answer
    x = 111,550.34

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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.