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Finding the Fourth Proportional to 1,017.04, 1,525.21 and 358.75

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Solution

The fourth proportional to 1,017.04, 1,525.21 and 358.75 is: 538.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,017.04 : 1,525.21 = 358.75 : x
  2. Step 2: Convert to fraction form
    1,017.04/1,525.21 = 358.75/x
  3. Step 3: Cross multiply
    1,017.04x = 1,525.21 × 358.75
  4. Step 4: Simplify right side
    1,017.04x = 547,169.09
  5. Step 5: Solve for x
    x = 547,169.09/1,017.04
  6. Step 6: Final answer
    x = 538.00

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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.