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Finding the Fourth Proportional to 612.48, 845.46 and 350.76

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Solution

The fourth proportional to 612.48, 845.46 and 350.76 is: 484.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.48 : 845.46 = 350.76 : x
  2. Step 2: Convert to fraction form
    612.48/845.46 = 350.76/x
  3. Step 3: Cross multiply
    612.48x = 845.46 × 350.76
  4. Step 4: Simplify right side
    612.48x = 296,553.55
  5. Step 5: Solve for x
    x = 296,553.55/612.48
  6. Step 6: Final answer
    x = 484.18

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Find fourth proportional to 306.24, 422.73 and 175.38
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1.5x scale

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.