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Finding the Fourth Proportional to 384,337.31, 530,386.39 and 212,252.14

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Solution

The fourth proportional to 384,337.31, 530,386.39 and 212,252.14 is: 292,908.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,337.31 : 530,386.39 = 212,252.14 : x
  2. Step 2: Convert to fraction form
    384,337.31/530,386.39 = 212,252.14/x
  3. Step 3: Cross multiply
    384,337.31x = 530,386.39 × 212,252.14
  4. Step 4: Simplify right side
    384,337.31x = 112,575,642,591.18
  5. Step 5: Solve for x
    x = 112,575,642,591.18/384,337.31
  6. Step 6: Final answer
    x = 292,908.44

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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.