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Finding the Fourth Proportional to 264,441.60, 396,581.40 and 86,907.60

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Solution

The fourth proportional to 264,441.60, 396,581.40 and 86,907.60 is: 130,334.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,441.60 : 396,581.40 = 86,907.60 : x
  2. Step 2: Convert to fraction form
    264,441.60/396,581.40 = 86,907.60/x
  3. Step 3: Cross multiply
    264,441.60x = 396,581.40 × 86,907.60
  4. Step 4: Simplify right side
    264,441.60x = 34,465,937,678.64
  5. Step 5: Solve for x
    x = 34,465,937,678.64/264,441.60
  6. Step 6: Final answer
    x = 130,334.78

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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.