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Finding the Fourth Proportional to 316,926.44, 475,289.28 and 103,645.07

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Solution

The fourth proportional to 316,926.44, 475,289.28 and 103,645.07 is: 155,434.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,926.44 : 475,289.28 = 103,645.07 : x
  2. Step 2: Convert to fraction form
    316,926.44/475,289.28 = 103,645.07/x
  3. Step 3: Cross multiply
    316,926.44x = 475,289.28 × 103,645.07
  4. Step 4: Simplify right side
    316,926.44x = 49,261,390,695.85
  5. Step 5: Solve for x
    x = 49,261,390,695.85/316,926.44
  6. Step 6: Final answer
    x = 155,434.78

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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.