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Finding the Fourth Proportional to 268,793.78, 370,935.32 and 155,614.10

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Solution

The fourth proportional to 268,793.78, 370,935.32 and 155,614.10 is: 214,747.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,793.78 : 370,935.32 = 155,614.10 : x
  2. Step 2: Convert to fraction form
    268,793.78/370,935.32 = 155,614.10/x
  3. Step 3: Cross multiply
    268,793.78x = 370,935.32 × 155,614.10
  4. Step 4: Simplify right side
    268,793.78x = 57,722,765,980.01
  5. Step 5: Solve for x
    x = 57,722,765,980.01/268,793.78
  6. Step 6: Final answer
    x = 214,747.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.