Home / 305,616.61-458,321.10-105,890.38

Finding the Fourth Proportional to 305,616.61, 458,321.10 and 105,890.38

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Solution

The fourth proportional to 305,616.61, 458,321.10 and 105,890.38 is: 158,799.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,616.61 : 458,321.10 = 105,890.38 : x
  2. Step 2: Convert to fraction form
    305,616.61/458,321.10 = 105,890.38/x
  3. Step 3: Cross multiply
    305,616.61x = 458,321.10 × 105,890.38
  4. Step 4: Simplify right side
    305,616.61x = 48,531,795,441.02
  5. Step 5: Solve for x
    x = 48,531,795,441.02/305,616.61
  6. Step 6: Final answer
    x = 158,799.60

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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.