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Finding the Fourth Proportional to 699.99, 1,050.69 and 353.58

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Solution

The fourth proportional to 699.99, 1,050.69 and 353.58 is: 530.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    699.99 : 1,050.69 = 353.58 : x
  2. Step 2: Convert to fraction form
    699.99/1,050.69 = 353.58/x
  3. Step 3: Cross multiply
    699.99x = 1,050.69 × 353.58
  4. Step 4: Simplify right side
    699.99x = 371,502.97
  5. Step 5: Solve for x
    x = 371,502.97/699.99
  6. Step 6: Final answer
    x = 530.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.