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Finding the Fourth Proportional to 557.61, 835.86 and 192.15

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Solution

The fourth proportional to 557.61, 835.86 and 192.15 is: 288.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    557.61 : 835.86 = 192.15 : x
  2. Step 2: Convert to fraction form
    557.61/835.86 = 192.15/x
  3. Step 3: Cross multiply
    557.61x = 835.86 × 192.15
  4. Step 4: Simplify right side
    557.61x = 160,610.50
  5. Step 5: Solve for x
    x = 160,610.50/557.61
  6. Step 6: Final answer
    x = 288.03

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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.