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Finding the Fourth Proportional to 349,606.71, 482,494.30 and 213,720.21

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Solution

The fourth proportional to 349,606.71, 482,494.30 and 213,720.21 is: 294,956.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,606.71 : 482,494.30 = 213,720.21 : x
  2. Step 2: Convert to fraction form
    349,606.71/482,494.30 = 213,720.21/x
  3. Step 3: Cross multiply
    349,606.71x = 482,494.30 × 213,720.21
  4. Step 4: Simplify right side
    349,606.71x = 103,118,782,585.50
  5. Step 5: Solve for x
    x = 103,118,782,585.50/349,606.71
  6. Step 6: Final answer
    x = 294,956.53

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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.