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Finding the Fourth Proportional to 316,928, 475,064.40 and 106,495.04

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Solution

The fourth proportional to 316,928, 475,064.40 and 106,495.04 is: 159,632.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,928 : 475,064.40 = 106,495.04 : x
  2. Step 2: Convert to fraction form
    316,928/475,064.40 = 106,495.04/x
  3. Step 3: Cross multiply
    316,928x = 475,064.40 × 106,495.04
  4. Step 4: Simplify right side
    316,928x = 50,592,002,280.58
  5. Step 5: Solve for x
    x = 50,592,002,280.58/316,928
  6. Step 6: Final answer
    x = 159,632.48

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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.