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Finding the Fourth Proportional to 205,551.85, 308,327.63 and 55,814.11

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Solution

The fourth proportional to 205,551.85, 308,327.63 and 55,814.11 is: 83,721.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,551.85 : 308,327.63 = 55,814.11 : x
  2. Step 2: Convert to fraction form
    205,551.85/308,327.63 = 55,814.11/x
  3. Step 3: Cross multiply
    205,551.85x = 308,327.63 × 55,814.11
  4. Step 4: Simplify right side
    205,551.85x = 17,209,032,256.86
  5. Step 5: Solve for x
    x = 17,209,032,256.86/205,551.85
  6. Step 6: Final answer
    x = 83,721.13

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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.