Home / 319,519.76-440,961.72-176,307.44

Finding the Fourth Proportional to 319,519.76, 440,961.72 and 176,307.44

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Solution

The fourth proportional to 319,519.76, 440,961.72 and 176,307.44 is: 243,317.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,519.76 : 440,961.72 = 176,307.44 : x
  2. Step 2: Convert to fraction form
    319,519.76/440,961.72 = 176,307.44/x
  3. Step 3: Cross multiply
    319,519.76x = 440,961.72 × 176,307.44
  4. Step 4: Simplify right side
    319,519.76x = 77,744,831,991.20
  5. Step 5: Solve for x
    x = 77,744,831,991.20/319,519.76
  6. Step 6: Final answer
    x = 243,317.76

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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.