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Finding the Fourth Proportional to 630,667.64, 945,439.02 and 231,215.32

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Solution

The fourth proportional to 630,667.64, 945,439.02 and 231,215.32 is: 346,616.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,667.64 : 945,439.02 = 231,215.32 : x
  2. Step 2: Convert to fraction form
    630,667.64/945,439.02 = 231,215.32/x
  3. Step 3: Cross multiply
    630,667.64x = 945,439.02 × 231,215.32
  4. Step 4: Simplify right side
    630,667.64x = 218,599,985,549.79
  5. Step 5: Solve for x
    x = 218,599,985,549.79/630,667.64
  6. Step 6: Final answer
    x = 346,616.78

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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.