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Finding the Fourth Proportional to 315.59, 435.55 and 184.60

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Solution

The fourth proportional to 315.59, 435.55 and 184.60 is: 254.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    315.59 : 435.55 = 184.60 : x
  2. Step 2: Convert to fraction form
    315.59/435.55 = 184.60/x
  3. Step 3: Cross multiply
    315.59x = 435.55 × 184.60
  4. Step 4: Simplify right side
    315.59x = 80,402.53
  5. Step 5: Solve for x
    x = 80,402.53/315.59
  6. Step 6: Final answer
    x = 254.77

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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.