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Finding the Fourth Proportional to 553.37, 830.34 and 510.23

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Solution

The fourth proportional to 553.37, 830.34 and 510.23 is: 765.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    553.37 : 830.34 = 510.23 : x
  2. Step 2: Convert to fraction form
    553.37/830.34 = 510.23/x
  3. Step 3: Cross multiply
    553.37x = 830.34 × 510.23
  4. Step 4: Simplify right side
    553.37x = 423,664.38
  5. Step 5: Solve for x
    x = 423,664.38/553.37
  6. Step 6: Final answer
    x = 765.61

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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.