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Finding the Fourth Proportional to 510.50, 704.28 and 340.24

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Solution

The fourth proportional to 510.50, 704.28 and 340.24 is: 469.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.50 : 704.28 = 340.24 : x
  2. Step 2: Convert to fraction form
    510.50/704.28 = 340.24/x
  3. Step 3: Cross multiply
    510.50x = 704.28 × 340.24
  4. Step 4: Simplify right side
    510.50x = 239,620.51
  5. Step 5: Solve for x
    x = 239,620.51/510.50
  6. Step 6: Final answer
    x = 469.38

Related Problems

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Double scale
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Similar ratio
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1.5x scale

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.