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Finding the Fourth Proportional to 269,840.70, 404,415.45 and 207,200.70

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Solution

The fourth proportional to 269,840.70, 404,415.45 and 207,200.70 is: 310,535.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,840.70 : 404,415.45 = 207,200.70 : x
  2. Step 2: Convert to fraction form
    269,840.70/404,415.45 = 207,200.70/x
  3. Step 3: Cross multiply
    269,840.70x = 404,415.45 × 207,200.70
  4. Step 4: Simplify right side
    269,840.70x = 83,795,164,330.82
  5. Step 5: Solve for x
    x = 83,795,164,330.82/269,840.70
  6. Step 6: Final answer
    x = 310,535.68

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1.5x scale

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.