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Finding the Fourth Proportional to 615,880.85, 923,846.70 and 211,351.10

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Solution

The fourth proportional to 615,880.85, 923,846.70 and 211,351.10 is: 317,035.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,880.85 : 923,846.70 = 211,351.10 : x
  2. Step 2: Convert to fraction form
    615,880.85/923,846.70 = 211,351.10/x
  3. Step 3: Cross multiply
    615,880.85x = 923,846.70 × 211,351.10
  4. Step 4: Simplify right side
    615,880.85x = 195,256,011,657.14
  5. Step 5: Solve for x
    x = 195,256,011,657.14/615,880.85
  6. Step 6: Final answer
    x = 317,035.37

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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.