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Finding the Fourth Proportional to 946.99, 1,421.30 and 370.27

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Solution

The fourth proportional to 946.99, 1,421.30 and 370.27 is: 555.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    946.99 : 1,421.30 = 370.27 : x
  2. Step 2: Convert to fraction form
    946.99/1,421.30 = 370.27/x
  3. Step 3: Cross multiply
    946.99x = 1,421.30 × 370.27
  4. Step 4: Simplify right side
    946.99x = 526,264.75
  5. Step 5: Solve for x
    x = 526,264.75/946.99
  6. Step 6: Final answer
    x = 555.72

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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.