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Finding the Fourth Proportional to 235,277.60, 352,916.40 and 208,839.20

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Solution

The fourth proportional to 235,277.60, 352,916.40 and 208,839.20 is: 313,258.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,277.60 : 352,916.40 = 208,839.20 : x
  2. Step 2: Convert to fraction form
    235,277.60/352,916.40 = 208,839.20/x
  3. Step 3: Cross multiply
    235,277.60x = 352,916.40 × 208,839.20
  4. Step 4: Simplify right side
    235,277.60x = 73,702,778,642.88
  5. Step 5: Solve for x
    x = 73,702,778,642.88/235,277.60
  6. Step 6: Final answer
    x = 313,258.80

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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.