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Finding the Fourth Proportional to 395,955.68, 593,870.40 and 115,407.36

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Solution

The fourth proportional to 395,955.68, 593,870.40 and 115,407.36 is: 173,092.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,955.68 : 593,870.40 = 115,407.36 : x
  2. Step 2: Convert to fraction form
    395,955.68/593,870.40 = 115,407.36/x
  3. Step 3: Cross multiply
    395,955.68x = 593,870.40 × 115,407.36
  4. Step 4: Simplify right side
    395,955.68x = 68,537,015,046.14
  5. Step 5: Solve for x
    x = 68,537,015,046.14/395,955.68
  6. Step 6: Final answer
    x = 173,092.64

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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.