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Finding the Fourth Proportional to 269,794.90, 404,692.35 and 258,276.70

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Solution

The fourth proportional to 269,794.90, 404,692.35 and 258,276.70 is: 387,415.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,794.90 : 404,692.35 = 258,276.70 : x
  2. Step 2: Convert to fraction form
    269,794.90/404,692.35 = 258,276.70/x
  3. Step 3: Cross multiply
    269,794.90x = 404,692.35 × 258,276.70
  4. Step 4: Simplify right side
    269,794.90x = 104,522,604,673.25
  5. Step 5: Solve for x
    x = 104,522,604,673.25/269,794.90
  6. Step 6: Final answer
    x = 387,415.05

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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.