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Finding the Fourth Proportional to 235,480.20, 352,701.90 and 209,214.60

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Solution

The fourth proportional to 235,480.20, 352,701.90 and 209,214.60 is: 313,361.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,480.20 : 352,701.90 = 209,214.60 : x
  2. Step 2: Convert to fraction form
    235,480.20/352,701.90 = 209,214.60/x
  3. Step 3: Cross multiply
    235,480.20x = 352,701.90 × 209,214.60
  4. Step 4: Simplify right side
    235,480.20x = 73,790,386,927.74
  5. Step 5: Solve for x
    x = 73,790,386,927.74/235,480.20
  6. Step 6: Final answer
    x = 313,361.32

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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.