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Finding the Fourth Proportional to 373.75, 515.73 and 314.52

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Solution

The fourth proportional to 373.75, 515.73 and 314.52 is: 434.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.75 : 515.73 = 314.52 : x
  2. Step 2: Convert to fraction form
    373.75/515.73 = 314.52/x
  3. Step 3: Cross multiply
    373.75x = 515.73 × 314.52
  4. Step 4: Simplify right side
    373.75x = 162,206.65
  5. Step 5: Solve for x
    x = 162,206.65/373.75
  6. Step 6: Final answer
    x = 434.00

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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.