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Finding the Fourth Proportional to 384,619.25, 530,773.25 and 212,532.42

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Solution

The fourth proportional to 384,619.25, 530,773.25 and 212,532.42 is: 293,294.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,619.25 : 530,773.25 = 212,532.42 : x
  2. Step 2: Convert to fraction form
    384,619.25/530,773.25 = 212,532.42/x
  3. Step 3: Cross multiply
    384,619.25x = 530,773.25 × 212,532.42
  4. Step 4: Simplify right side
    384,619.25x = 112,806,523,293.77
  5. Step 5: Solve for x
    x = 112,806,523,293.77/384,619.25
  6. Step 6: Final answer
    x = 293,294.01

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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.