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Finding the Fourth Proportional to 305,482.15, 458,222.82 and 172,301.95

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Solution

The fourth proportional to 305,482.15, 458,222.82 and 172,301.95 is: 258,452.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,482.15 : 458,222.82 = 172,301.95 : x
  2. Step 2: Convert to fraction form
    305,482.15/458,222.82 = 172,301.95/x
  3. Step 3: Cross multiply
    305,482.15x = 458,222.82 × 172,301.95
  4. Step 4: Simplify right side
    305,482.15x = 78,952,685,420.50
  5. Step 5: Solve for x
    x = 78,952,685,420.50/305,482.15
  6. Step 6: Final answer
    x = 258,452.70

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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.