Home / 319,399.12-440,790.96-176,159.44

Finding the Fourth Proportional to 319,399.12, 440,790.96 and 176,159.44

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Solution

The fourth proportional to 319,399.12, 440,790.96 and 176,159.44 is: 243,111.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,399.12 : 440,790.96 = 176,159.44 : x
  2. Step 2: Convert to fraction form
    319,399.12/440,790.96 = 176,159.44/x
  3. Step 3: Cross multiply
    319,399.12x = 440,790.96 × 176,159.44
  4. Step 4: Simplify right side
    319,399.12x = 77,649,488,670.66
  5. Step 5: Solve for x
    x = 77,649,488,670.66/319,399.12
  6. Step 6: Final answer
    x = 243,111.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.