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Finding the Fourth Proportional to 349,607.71, 482,495.68 and 213,721.21

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Solution

The fourth proportional to 349,607.71, 482,495.68 and 213,721.21 is: 294,957.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,607.71 : 482,495.68 = 213,721.21 : x
  2. Step 2: Convert to fraction form
    349,607.71/482,495.68 = 213,721.21/x
  3. Step 3: Cross multiply
    349,607.71x = 482,495.68 × 213,721.21
  4. Step 4: Simplify right side
    349,607.71x = 103,119,560,549.37
  5. Step 5: Solve for x
    x = 103,119,560,549.37/349,607.71
  6. Step 6: Final answer
    x = 294,957.91

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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.