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Finding the Fourth Proportional to 1,006.30, 1,509.22 and 357.04

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Solution

The fourth proportional to 1,006.30, 1,509.22 and 357.04 is: 535.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006.30 : 1,509.22 = 357.04 : x
  2. Step 2: Convert to fraction form
    1,006.30/1,509.22 = 357.04/x
  3. Step 3: Cross multiply
    1,006.30x = 1,509.22 × 357.04
  4. Step 4: Simplify right side
    1,006.30x = 538,842.58
  5. Step 5: Solve for x
    x = 538,842.58/1,006.30
  6. Step 6: Final answer
    x = 535.47

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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.