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Finding the Fourth Proportional to 386,719.59, 533,771.12 and 264,261.54

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Solution

The fourth proportional to 386,719.59, 533,771.12 and 264,261.54 is: 364,747.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,719.59 : 533,771.12 = 264,261.54 : x
  2. Step 2: Convert to fraction form
    386,719.59/533,771.12 = 264,261.54/x
  3. Step 3: Cross multiply
    386,719.59x = 533,771.12 × 264,261.54
  4. Step 4: Simplify right side
    386,719.59x = 141,055,178,178.73
  5. Step 5: Solve for x
    x = 141,055,178,178.73/386,719.59
  6. Step 6: Final answer
    x = 364,747.95

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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.