Home / 291,246.36-436,927.88-91,617

Finding the Fourth Proportional to 291,246.36, 436,927.88 and 91,617

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Solution

The fourth proportional to 291,246.36, 436,927.88 and 91,617 is: 137,443.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,246.36 : 436,927.88 = 91,617 : x
  2. Step 2: Convert to fraction form
    291,246.36/436,927.88 = 91,617/x
  3. Step 3: Cross multiply
    291,246.36x = 436,927.88 × 91,617
  4. Step 4: Simplify right side
    291,246.36x = 40,030,021,581.96
  5. Step 5: Solve for x
    x = 40,030,021,581.96/291,246.36
  6. Step 6: Final answer
    x = 137,443.85

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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.