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Finding the Fourth Proportional to 269,305.57, 400,779.43 and 260,336.01

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Solution

The fourth proportional to 269,305.57, 400,779.43 and 260,336.01 is: 387,430.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,305.57 : 400,779.43 = 260,336.01 : x
  2. Step 2: Convert to fraction form
    269,305.57/400,779.43 = 260,336.01/x
  3. Step 3: Cross multiply
    269,305.57x = 400,779.43 × 260,336.01
  4. Step 4: Simplify right side
    269,305.57x = 104,337,318,347.11
  5. Step 5: Solve for x
    x = 104,337,318,347.11/269,305.57
  6. Step 6: Final answer
    x = 387,430.97

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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.