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Finding the Fourth Proportional to 279,313.64, 419,036.08 and 92,325.14

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Solution

The fourth proportional to 279,313.64, 419,036.08 and 92,325.14 is: 138,509.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,313.64 : 419,036.08 = 92,325.14 : x
  2. Step 2: Convert to fraction form
    279,313.64/419,036.08 = 92,325.14/x
  3. Step 3: Cross multiply
    279,313.64x = 419,036.08 × 92,325.14
  4. Step 4: Simplify right side
    279,313.64x = 38,687,564,751.05
  5. Step 5: Solve for x
    x = 38,687,564,751.05/279,313.64
  6. Step 6: Final answer
    x = 138,509.40

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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.