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Finding the Fourth Proportional to 366,856.70, 550,285.05 and 307,807.70

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Solution

The fourth proportional to 366,856.70, 550,285.05 and 307,807.70 is: 461,711.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,856.70 : 550,285.05 = 307,807.70 : x
  2. Step 2: Convert to fraction form
    366,856.70/550,285.05 = 307,807.70/x
  3. Step 3: Cross multiply
    366,856.70x = 550,285.05 × 307,807.70
  4. Step 4: Simplify right side
    366,856.70x = 169,381,975,584.89
  5. Step 5: Solve for x
    x = 169,381,975,584.89/366,856.70
  6. Step 6: Final answer
    x = 461,711.55

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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.