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Finding the Fourth Proportional to 330,733.88, 456,476.14 and 187,494.49

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Solution

The fourth proportional to 330,733.88, 456,476.14 and 187,494.49 is: 258,778.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,733.88 : 456,476.14 = 187,494.49 : x
  2. Step 2: Convert to fraction form
    330,733.88/456,476.14 = 187,494.49/x
  3. Step 3: Cross multiply
    330,733.88x = 456,476.14 × 187,494.49
  4. Step 4: Simplify right side
    330,733.88x = 85,586,761,066.47
  5. Step 5: Solve for x
    x = 85,586,761,066.47/330,733.88
  6. Step 6: Final answer
    x = 258,778.33

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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.