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Finding the Fourth Proportional to 1,015.08, 1,521.41 and 365.06

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Solution

The fourth proportional to 1,015.08, 1,521.41 and 365.06 is: 547.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015.08 : 1,521.41 = 365.06 : x
  2. Step 2: Convert to fraction form
    1,015.08/1,521.41 = 365.06/x
  3. Step 3: Cross multiply
    1,015.08x = 1,521.41 × 365.06
  4. Step 4: Simplify right side
    1,015.08x = 555,396.50
  5. Step 5: Solve for x
    x = 555,396.50/1,015.08
  6. Step 6: Final answer
    x = 547.15

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1.5x scale

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.