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Finding the Fourth Proportional to 651.11, 975.87 and 358.60

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Solution

The fourth proportional to 651.11, 975.87 and 358.60 is: 537.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.11 : 975.87 = 358.60 : x
  2. Step 2: Convert to fraction form
    651.11/975.87 = 358.60/x
  3. Step 3: Cross multiply
    651.11x = 975.87 × 358.60
  4. Step 4: Simplify right side
    651.11x = 349,946.09
  5. Step 5: Solve for x
    x = 349,946.09/651.11
  6. Step 6: Final answer
    x = 537.46

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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.