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Finding the Fourth Proportional to 623.41, 934.93 and 315.06

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Solution

The fourth proportional to 623.41, 934.93 and 315.06 is: 472.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.41 : 934.93 = 315.06 : x
  2. Step 2: Convert to fraction form
    623.41/934.93 = 315.06/x
  3. Step 3: Cross multiply
    623.41x = 934.93 × 315.06
  4. Step 4: Simplify right side
    623.41x = 294,559.05
  5. Step 5: Solve for x
    x = 294,559.05/623.41
  6. Step 6: Final answer
    x = 472.50

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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.