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Finding the Fourth Proportional to 282.96, 390.57 and 184.74

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Solution

The fourth proportional to 282.96, 390.57 and 184.74 is: 255.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    282.96 : 390.57 = 184.74 : x
  2. Step 2: Convert to fraction form
    282.96/390.57 = 184.74/x
  3. Step 3: Cross multiply
    282.96x = 390.57 × 184.74
  4. Step 4: Simplify right side
    282.96x = 72,153.90
  5. Step 5: Solve for x
    x = 72,153.90/282.96
  6. Step 6: Final answer
    x = 255.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.