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Finding the Fourth Proportional to 238,914, 358,371 and 72,702

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Solution

The fourth proportional to 238,914, 358,371 and 72,702 is: 109,053

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,914 : 358,371 = 72,702 : x
  2. Step 2: Convert to fraction form
    238,914/358,371 = 72,702/x
  3. Step 3: Cross multiply
    238,914x = 358,371 × 72,702
  4. Step 4: Simplify right side
    238,914x = 26,054,288,442
  5. Step 5: Solve for x
    x = 26,054,288,442/238,914
  6. Step 6: Final answer
    x = 109,053

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.