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Finding the Fourth Proportional to 259,676.08, 389,279.01 and 101,862.16

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Solution

The fourth proportional to 259,676.08, 389,279.01 and 101,862.16 is: 152,701.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,676.08 : 389,279.01 = 101,862.16 : x
  2. Step 2: Convert to fraction form
    259,676.08/389,279.01 = 101,862.16/x
  3. Step 3: Cross multiply
    259,676.08x = 389,279.01 × 101,862.16
  4. Step 4: Simplify right side
    259,676.08x = 39,652,800,801.26
  5. Step 5: Solve for x
    x = 39,652,800,801.26/259,676.08
  6. Step 6: Final answer
    x = 152,701.01

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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.