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Finding the Fourth Proportional to 400.83, 601.12 and 157.30

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Solution

The fourth proportional to 400.83, 601.12 and 157.30 is: 235.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.83 : 601.12 = 157.30 : x
  2. Step 2: Convert to fraction form
    400.83/601.12 = 157.30/x
  3. Step 3: Cross multiply
    400.83x = 601.12 × 157.30
  4. Step 4: Simplify right side
    400.83x = 94,556.18
  5. Step 5: Solve for x
    x = 94,556.18/400.83
  6. Step 6: Final answer
    x = 235.90

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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.