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Finding the Fourth Proportional to 510.28, 700.01 and 499.48

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Solution

The fourth proportional to 510.28, 700.01 and 499.48 is: 685.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.28 : 700.01 = 499.48 : x
  2. Step 2: Convert to fraction form
    510.28/700.01 = 499.48/x
  3. Step 3: Cross multiply
    510.28x = 700.01 × 499.48
  4. Step 4: Simplify right side
    510.28x = 349,640.99
  5. Step 5: Solve for x
    x = 349,640.99/510.28
  6. Step 6: Final answer
    x = 685.19

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.