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Finding the Fourth Proportional to 205,309.55, 307,965.03 and 63,153.86

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Solution

The fourth proportional to 205,309.55, 307,965.03 and 63,153.86 is: 94,731.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,309.55 : 307,965.03 = 63,153.86 : x
  2. Step 2: Convert to fraction form
    205,309.55/307,965.03 = 63,153.86/x
  3. Step 3: Cross multiply
    205,309.55x = 307,965.03 × 63,153.86
  4. Step 4: Simplify right side
    205,309.55x = 19,449,178,849.69
  5. Step 5: Solve for x
    x = 19,449,178,849.69/205,309.55
  6. Step 6: Final answer
    x = 94,731.00

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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.