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Finding the Fourth Proportional to 349,581.72, 482,459.79 and 213,695.21

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Solution

The fourth proportional to 349,581.72, 482,459.79 and 213,695.21 is: 294,922.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,581.72 : 482,459.79 = 213,695.21 : x
  2. Step 2: Convert to fraction form
    349,581.72/482,459.79 = 213,695.21/x
  3. Step 3: Cross multiply
    349,581.72x = 482,459.79 × 213,695.21
  4. Step 4: Simplify right side
    349,581.72x = 103,099,348,148.11
  5. Step 5: Solve for x
    x = 103,099,348,148.11/349,581.72
  6. Step 6: Final answer
    x = 294,922.02

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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.