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Finding the Fourth Proportional to 400,795.92, 553,102.07 and 273,468.78

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Solution

The fourth proportional to 400,795.92, 553,102.07 and 273,468.78 is: 377,389.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,795.92 : 553,102.07 = 273,468.78 : x
  2. Step 2: Convert to fraction form
    400,795.92/553,102.07 = 273,468.78/x
  3. Step 3: Cross multiply
    400,795.92x = 553,102.07 × 273,468.78
  4. Step 4: Simplify right side
    400,795.92x = 151,256,146,931.03
  5. Step 5: Solve for x
    x = 151,256,146,931.03/400,795.92
  6. Step 6: Final answer
    x = 377,389.44

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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.