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Finding the Fourth Proportional to 830.59, 1,246.37 and 368.44

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Solution

The fourth proportional to 830.59, 1,246.37 and 368.44 is: 552.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    830.59 : 1,246.37 = 368.44 : x
  2. Step 2: Convert to fraction form
    830.59/1,246.37 = 368.44/x
  3. Step 3: Cross multiply
    830.59x = 1,246.37 × 368.44
  4. Step 4: Simplify right side
    830.59x = 459,212.56
  5. Step 5: Solve for x
    x = 459,212.56/830.59
  6. Step 6: Final answer
    x = 552.88

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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.