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Finding the Fourth Proportional to 316,999.65, 475,572.38 and 103,774.44

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Solution

The fourth proportional to 316,999.65, 475,572.38 and 103,774.44 is: 155,685.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,999.65 : 475,572.38 = 103,774.44 : x
  2. Step 2: Convert to fraction form
    316,999.65/475,572.38 = 103,774.44/x
  3. Step 3: Cross multiply
    316,999.65x = 475,572.38 × 103,774.44
  4. Step 4: Simplify right side
    316,999.65x = 49,352,256,895.10
  5. Step 5: Solve for x
    x = 49,352,256,895.10/316,999.65
  6. Step 6: Final answer
    x = 155,685.52

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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.