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Finding the Fourth Proportional to 253,537.83, 380,277.95 and 66,563.91

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Solution

The fourth proportional to 253,537.83, 380,277.95 and 66,563.91 is: 99,838.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,537.83 : 380,277.95 = 66,563.91 : x
  2. Step 2: Convert to fraction form
    253,537.83/380,277.95 = 66,563.91/x
  3. Step 3: Cross multiply
    253,537.83x = 380,277.95 × 66,563.91
  4. Step 4: Simplify right side
    253,537.83x = 25,312,786,905.97
  5. Step 5: Solve for x
    x = 25,312,786,905.97/253,537.83
  6. Step 6: Final answer
    x = 99,838.30

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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.