Home / 245,890.20-368,381.70-140,395.80

Finding the Fourth Proportional to 245,890.20, 368,381.70 and 140,395.80

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Solution

The fourth proportional to 245,890.20, 368,381.70 and 140,395.80 is: 210,334.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,890.20 : 368,381.70 = 140,395.80 : x
  2. Step 2: Convert to fraction form
    245,890.20/368,381.70 = 140,395.80/x
  3. Step 3: Cross multiply
    245,890.20x = 368,381.70 × 140,395.80
  4. Step 4: Simplify right side
    245,890.20x = 51,719,243,476.86
  5. Step 5: Solve for x
    x = 51,719,243,476.86/245,890.20
  6. Step 6: Final answer
    x = 210,334.71

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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.