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Finding the Fourth Proportional to 602.91, 831.79 and 366.76

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Solution

The fourth proportional to 602.91, 831.79 and 366.76 is: 505.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.91 : 831.79 = 366.76 : x
  2. Step 2: Convert to fraction form
    602.91/831.79 = 366.76/x
  3. Step 3: Cross multiply
    602.91x = 831.79 × 366.76
  4. Step 4: Simplify right side
    602.91x = 305,068.45
  5. Step 5: Solve for x
    x = 305,068.45/602.91
  6. Step 6: Final answer
    x = 505.99

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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.