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Finding the Fourth Proportional to 305,885.57, 458,310.56 and 187,309.26

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Solution

The fourth proportional to 305,885.57, 458,310.56 and 187,309.26 is: 280,646.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,885.57 : 458,310.56 = 187,309.26 : x
  2. Step 2: Convert to fraction form
    305,885.57/458,310.56 = 187,309.26/x
  3. Step 3: Cross multiply
    305,885.57x = 458,310.56 × 187,309.26
  4. Step 4: Simplify right side
    305,885.57x = 85,845,810,907.24
  5. Step 5: Solve for x
    x = 85,845,810,907.24/305,885.57
  6. Step 6: Final answer
    x = 280,646.82

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1.5x scale

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.