Home / 320,863.21-442,796.46-175,666.55

Finding the Fourth Proportional to 320,863.21, 442,796.46 and 175,666.55

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Solution

The fourth proportional to 320,863.21, 442,796.46 and 175,666.55 is: 242,422.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,863.21 : 442,796.46 = 175,666.55 : x
  2. Step 2: Convert to fraction form
    320,863.21/442,796.46 = 175,666.55/x
  3. Step 3: Cross multiply
    320,863.21x = 442,796.46 × 175,666.55
  4. Step 4: Simplify right side
    320,863.21x = 77,784,523,607.68
  5. Step 5: Solve for x
    x = 77,784,523,607.68/320,863.21
  6. Step 6: Final answer
    x = 242,422.70

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1.5x scale

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.