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Finding the Fourth Proportional to 452.72, 623.36 and 373.75

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Solution

The fourth proportional to 452.72, 623.36 and 373.75 is: 514.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.72 : 623.36 = 373.75 : x
  2. Step 2: Convert to fraction form
    452.72/623.36 = 373.75/x
  3. Step 3: Cross multiply
    452.72x = 623.36 × 373.75
  4. Step 4: Simplify right side
    452.72x = 232,980.18
  5. Step 5: Solve for x
    x = 232,980.18/452.72
  6. Step 6: Final answer
    x = 514.62

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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.