Home / 262,481.12-393,784.40-84,988.32

Finding the Fourth Proportional to 262,481.12, 393,784.40 and 84,988.32

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Solution

The fourth proportional to 262,481.12, 393,784.40 and 84,988.32 is: 127,502.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,481.12 : 393,784.40 = 84,988.32 : x
  2. Step 2: Convert to fraction form
    262,481.12/393,784.40 = 84,988.32/x
  3. Step 3: Cross multiply
    262,481.12x = 393,784.40 × 84,988.32
  4. Step 4: Simplify right side
    262,481.12x = 33,467,074,598.21
  5. Step 5: Solve for x
    x = 33,467,074,598.21/262,481.12
  6. Step 6: Final answer
    x = 127,502.79

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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.