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Finding the Fourth Proportional to 351,800, 527,700 and 154,808

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Solution

The fourth proportional to 351,800, 527,700 and 154,808 is: 232,212

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,800 : 527,700 = 154,808 : x
  2. Step 2: Convert to fraction form
    351,800/527,700 = 154,808/x
  3. Step 3: Cross multiply
    351,800x = 527,700 × 154,808
  4. Step 4: Simplify right side
    351,800x = 81,692,181,600
  5. Step 5: Solve for x
    x = 81,692,181,600/351,800
  6. Step 6: Final answer
    x = 232,212

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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.