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Finding the Fourth Proportional to 652.35, 900.27 and 386.73

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Solution

The fourth proportional to 652.35, 900.27 and 386.73 is: 533.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    652.35 : 900.27 = 386.73 : x
  2. Step 2: Convert to fraction form
    652.35/900.27 = 386.73/x
  3. Step 3: Cross multiply
    652.35x = 900.27 × 386.73
  4. Step 4: Simplify right side
    652.35x = 348,161.42
  5. Step 5: Solve for x
    x = 348,161.42/652.35
  6. Step 6: Final answer
    x = 533.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.