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Finding the Fourth Proportional to 623.55, 934.98 and 298.92

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Solution

The fourth proportional to 623.55, 934.98 and 298.92 is: 448.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.55 : 934.98 = 298.92 : x
  2. Step 2: Convert to fraction form
    623.55/934.98 = 298.92/x
  3. Step 3: Cross multiply
    623.55x = 934.98 × 298.92
  4. Step 4: Simplify right side
    623.55x = 279,484.22
  5. Step 5: Solve for x
    x = 279,484.22/623.55
  6. Step 6: Final answer
    x = 448.21

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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.