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Finding the Fourth Proportional to 556.36, 833.35 and 382.21

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Solution

The fourth proportional to 556.36, 833.35 and 382.21 is: 572.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.36 : 833.35 = 382.21 : x
  2. Step 2: Convert to fraction form
    556.36/833.35 = 382.21/x
  3. Step 3: Cross multiply
    556.36x = 833.35 × 382.21
  4. Step 4: Simplify right side
    556.36x = 318,514.70
  5. Step 5: Solve for x
    x = 318,514.70/556.36
  6. Step 6: Final answer
    x = 572.50

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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.