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Finding the Fourth Proportional to 215,748.63, 322,755.71 and 186,480.63

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Solution

The fourth proportional to 215,748.63, 322,755.71 and 186,480.63 is: 278,971.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,748.63 : 322,755.71 = 186,480.63 : x
  2. Step 2: Convert to fraction form
    215,748.63/322,755.71 = 186,480.63/x
  3. Step 3: Cross multiply
    215,748.63x = 322,755.71 × 186,480.63
  4. Step 4: Simplify right side
    215,748.63x = 60,187,687,204.49
  5. Step 5: Solve for x
    x = 60,187,687,204.49/215,748.63
  6. Step 6: Final answer
    x = 278,971.35

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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.