Home / 293,514.90-440,420.06-218,785.11

Finding the Fourth Proportional to 293,514.90, 440,420.06 and 218,785.11

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Solution

The fourth proportional to 293,514.90, 440,420.06 and 218,785.11 is: 328,287.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,514.90 : 440,420.06 = 218,785.11 : x
  2. Step 2: Convert to fraction form
    293,514.90/440,420.06 = 218,785.11/x
  3. Step 3: Cross multiply
    293,514.90x = 440,420.06 × 218,785.11
  4. Step 4: Simplify right side
    293,514.90x = 96,357,351,273.31
  5. Step 5: Solve for x
    x = 96,357,351,273.31/293,514.90
  6. Step 6: Final answer
    x = 328,287.77

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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.