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Finding the Fourth Proportional to 268,352.60, 402,068.10 and 141,805.40

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Solution

The fourth proportional to 268,352.60, 402,068.10 and 141,805.40 is: 212,464.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,352.60 : 402,068.10 = 141,805.40 : x
  2. Step 2: Convert to fraction form
    268,352.60/402,068.10 = 141,805.40/x
  3. Step 3: Cross multiply
    268,352.60x = 402,068.10 × 141,805.40
  4. Step 4: Simplify right side
    268,352.60x = 57,015,427,747.74
  5. Step 5: Solve for x
    x = 57,015,427,747.74/268,352.60
  6. Step 6: Final answer
    x = 212,464.60

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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.