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Finding the Fourth Proportional to 623.19, 934.80 and 258.02

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Solution

The fourth proportional to 623.19, 934.80 and 258.02 is: 387.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.19 : 934.80 = 258.02 : x
  2. Step 2: Convert to fraction form
    623.19/934.80 = 258.02/x
  3. Step 3: Cross multiply
    623.19x = 934.80 × 258.02
  4. Step 4: Simplify right side
    623.19x = 241,192.42
  5. Step 5: Solve for x
    x = 241,192.42/623.19
  6. Step 6: Final answer
    x = 387.03

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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.