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Finding the Fourth Proportional to 1,050.67, 1,576.06 and 357.31

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Solution

The fourth proportional to 1,050.67, 1,576.06 and 357.31 is: 535.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,050.67 : 1,576.06 = 357.31 : x
  2. Step 2: Convert to fraction form
    1,050.67/1,576.06 = 357.31/x
  3. Step 3: Cross multiply
    1,050.67x = 1,576.06 × 357.31
  4. Step 4: Simplify right side
    1,050.67x = 563,143.08
  5. Step 5: Solve for x
    x = 563,143.08/1,050.67
  6. Step 6: Final answer
    x = 535.98

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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.