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Finding the Fourth Proportional to 437,530.70, 656,296.05 and 259,946.30

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Solution

The fourth proportional to 437,530.70, 656,296.05 and 259,946.30 is: 389,919.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,530.70 : 656,296.05 = 259,946.30 : x
  2. Step 2: Convert to fraction form
    437,530.70/656,296.05 = 259,946.30/x
  3. Step 3: Cross multiply
    437,530.70x = 656,296.05 × 259,946.30
  4. Step 4: Simplify right side
    437,530.70x = 170,601,729,902.12
  5. Step 5: Solve for x
    x = 170,601,729,902.12/437,530.70
  6. Step 6: Final answer
    x = 389,919.45

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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.