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Finding the Fourth Proportional to 354,601.80, 531,902.70 and 344,760.30

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Solution

The fourth proportional to 354,601.80, 531,902.70 and 344,760.30 is: 517,140.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,601.80 : 531,902.70 = 344,760.30 : x
  2. Step 2: Convert to fraction form
    354,601.80/531,902.70 = 344,760.30/x
  3. Step 3: Cross multiply
    354,601.80x = 531,902.70 × 344,760.30
  4. Step 4: Simplify right side
    354,601.80x = 183,378,934,422.81
  5. Step 5: Solve for x
    x = 183,378,934,422.81/354,601.80
  6. Step 6: Final answer
    x = 517,140.45

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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.