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Finding the Fourth Proportional to 373.63, 560.03 and 258.12

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Solution

The fourth proportional to 373.63, 560.03 and 258.12 is: 386.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.63 : 560.03 = 258.12 : x
  2. Step 2: Convert to fraction form
    373.63/560.03 = 258.12/x
  3. Step 3: Cross multiply
    373.63x = 560.03 × 258.12
  4. Step 4: Simplify right side
    373.63x = 144,554.94
  5. Step 5: Solve for x
    x = 144,554.94/373.63
  6. Step 6: Final answer
    x = 386.89

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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.