Home / 557.28-835.90-210.60

Finding the Fourth Proportional to 557.28, 835.90 and 210.60

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Solution

The fourth proportional to 557.28, 835.90 and 210.60 is: 315.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    557.28 : 835.90 = 210.60 : x
  2. Step 2: Convert to fraction form
    557.28/835.90 = 210.60/x
  3. Step 3: Cross multiply
    557.28x = 835.90 × 210.60
  4. Step 4: Simplify right side
    557.28x = 176,040.54
  5. Step 5: Solve for x
    x = 176,040.54/557.28
  6. Step 6: Final answer
    x = 315.89

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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.