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Finding the Fourth Proportional to 612.23, 916.92 and 337.77

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Solution

The fourth proportional to 612.23, 916.92 and 337.77 is: 505.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.23 : 916.92 = 337.77 : x
  2. Step 2: Convert to fraction form
    612.23/916.92 = 337.77/x
  3. Step 3: Cross multiply
    612.23x = 916.92 × 337.77
  4. Step 4: Simplify right side
    612.23x = 309,708.07
  5. Step 5: Solve for x
    x = 309,708.07/612.23
  6. Step 6: Final answer
    x = 505.87

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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.