Home / 319,377.72-440,744.04-176,142.72

Finding the Fourth Proportional to 319,377.72, 440,744.04 and 176,142.72

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Solution

The fourth proportional to 319,377.72, 440,744.04 and 176,142.72 is: 243,078.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,377.72 : 440,744.04 = 176,142.72 : x
  2. Step 2: Convert to fraction form
    319,377.72/440,744.04 = 176,142.72/x
  3. Step 3: Cross multiply
    319,377.72x = 440,744.04 × 176,142.72
  4. Step 4: Simplify right side
    319,377.72x = 77,633,854,029.39
  5. Step 5: Solve for x
    x = 77,633,854,029.39/319,377.72
  6. Step 6: Final answer
    x = 243,078.49

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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.