Home / 252,421.72-378,579.12-94,661.80

Finding the Fourth Proportional to 252,421.72, 378,579.12 and 94,661.80

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Solution

The fourth proportional to 252,421.72, 378,579.12 and 94,661.80 is: 141,972.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,421.72 : 378,579.12 = 94,661.80 : x
  2. Step 2: Convert to fraction form
    252,421.72/378,579.12 = 94,661.80/x
  3. Step 3: Cross multiply
    252,421.72x = 378,579.12 × 94,661.80
  4. Step 4: Simplify right side
    252,421.72x = 35,836,980,941.62
  5. Step 5: Solve for x
    x = 35,836,980,941.62/252,421.72
  6. Step 6: Final answer
    x = 141,972.65

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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.