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Finding the Fourth Proportional to 215,053.52, 320,765.50 and 186,751.00

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Solution

The fourth proportional to 215,053.52, 320,765.50 and 186,751.00 is: 278,550.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,053.52 : 320,765.50 = 186,751.00 : x
  2. Step 2: Convert to fraction form
    215,053.52/320,765.50 = 186,751.00/x
  3. Step 3: Cross multiply
    215,053.52x = 320,765.50 × 186,751.00
  4. Step 4: Simplify right side
    215,053.52x = 59,903,278,524.90
  5. Step 5: Solve for x
    x = 59,903,278,524.90/215,053.52
  6. Step 6: Final answer
    x = 278,550.57

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.