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Finding the Fourth Proportional to 415.04, 621.58 and 376.08

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Solution

The fourth proportional to 415.04, 621.58 and 376.08 is: 563.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    415.04 : 621.58 = 376.08 : x
  2. Step 2: Convert to fraction form
    415.04/621.58 = 376.08/x
  3. Step 3: Cross multiply
    415.04x = 621.58 × 376.08
  4. Step 4: Simplify right side
    415.04x = 233,763.81
  5. Step 5: Solve for x
    x = 233,763.81/415.04
  6. Step 6: Final answer
    x = 563.23

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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.