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Finding the Fourth Proportional to 622.01, 858.03 and 373.19

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Solution

The fourth proportional to 622.01, 858.03 and 373.19 is: 514.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.01 : 858.03 = 373.19 : x
  2. Step 2: Convert to fraction form
    622.01/858.03 = 373.19/x
  3. Step 3: Cross multiply
    622.01x = 858.03 × 373.19
  4. Step 4: Simplify right side
    622.01x = 320,207.35
  5. Step 5: Solve for x
    x = 320,207.35/622.01
  6. Step 6: Final answer
    x = 514.79

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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.