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Finding the Fourth Proportional to 513.50, 708.40 and 373.26

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Solution

The fourth proportional to 513.50, 708.40 and 373.26 is: 514.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    513.50 : 708.40 = 373.26 : x
  2. Step 2: Convert to fraction form
    513.50/708.40 = 373.26/x
  3. Step 3: Cross multiply
    513.50x = 708.40 × 373.26
  4. Step 4: Simplify right side
    513.50x = 264,417.38
  5. Step 5: Solve for x
    x = 264,417.38/513.50
  6. Step 6: Final answer
    x = 514.93

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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.