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Finding the Fourth Proportional to 952.15, 1,428.23 and 302.88

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Solution

The fourth proportional to 952.15, 1,428.23 and 302.88 is: 454.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    952.15 : 1,428.23 = 302.88 : x
  2. Step 2: Convert to fraction form
    952.15/1,428.23 = 302.88/x
  3. Step 3: Cross multiply
    952.15x = 1,428.23 × 302.88
  4. Step 4: Simplify right side
    952.15x = 432,582.30
  5. Step 5: Solve for x
    x = 432,582.30/952.15
  6. Step 6: Final answer
    x = 454.32

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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.