Home / 290,977.24-436,541.82-91,303.96

Finding the Fourth Proportional to 290,977.24, 436,541.82 and 91,303.96

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Solution

The fourth proportional to 290,977.24, 436,541.82 and 91,303.96 is: 136,979.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,977.24 : 436,541.82 = 91,303.96 : x
  2. Step 2: Convert to fraction form
    290,977.24/436,541.82 = 91,303.96/x
  3. Step 3: Cross multiply
    290,977.24x = 436,541.82 × 91,303.96
  4. Step 4: Simplify right side
    290,977.24x = 39,857,996,871.61
  5. Step 5: Solve for x
    x = 39,857,996,871.61/290,977.24
  6. Step 6: Final answer
    x = 136,979.78

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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.