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Finding the Fourth Proportional to 510.42, 704.34 and 314.04

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Solution

The fourth proportional to 510.42, 704.34 and 314.04 is: 433.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.42 : 704.34 = 314.04 : x
  2. Step 2: Convert to fraction form
    510.42/704.34 = 314.04/x
  3. Step 3: Cross multiply
    510.42x = 704.34 × 314.04
  4. Step 4: Simplify right side
    510.42x = 221,190.93
  5. Step 5: Solve for x
    x = 221,190.93/510.42
  6. Step 6: Final answer
    x = 433.35

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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.