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Finding the Fourth Proportional to 330,830.99, 456,546.75 and 187,591

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Solution

The fourth proportional to 330,830.99, 456,546.75 and 187,591 is: 258,875.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,830.99 : 456,546.75 = 187,591 : x
  2. Step 2: Convert to fraction form
    330,830.99/456,546.75 = 187,591/x
  3. Step 3: Cross multiply
    330,830.99x = 456,546.75 × 187,591
  4. Step 4: Simplify right side
    330,830.99x = 85,644,061,379.25
  5. Step 5: Solve for x
    x = 85,644,061,379.25/330,830.99
  6. Step 6: Final answer
    x = 258,875.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.