Home / 247,588.40-340,895.04-218,486.72

Finding the Fourth Proportional to 247,588.40, 340,895.04 and 218,486.72

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Solution

The fourth proportional to 247,588.40, 340,895.04 and 218,486.72 is: 300,826.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,588.40 : 340,895.04 = 218,486.72 : x
  2. Step 2: Convert to fraction form
    247,588.40/340,895.04 = 218,486.72/x
  3. Step 3: Cross multiply
    247,588.40x = 340,895.04 × 218,486.72
  4. Step 4: Simplify right side
    247,588.40x = 74,481,039,153.87
  5. Step 5: Solve for x
    x = 74,481,039,153.87/247,588.40
  6. Step 6: Final answer
    x = 300,826.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.