Home / 320,863.09-442,796.28-175,666.42

Finding the Fourth Proportional to 320,863.09, 442,796.28 and 175,666.42

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Solution

The fourth proportional to 320,863.09, 442,796.28 and 175,666.42 is: 242,422.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,863.09 : 442,796.28 = 175,666.42 : x
  2. Step 2: Convert to fraction form
    320,863.09/442,796.28 = 175,666.42/x
  3. Step 3: Cross multiply
    320,863.09x = 442,796.28 × 175,666.42
  4. Step 4: Simplify right side
    320,863.09x = 77,784,437,296.92
  5. Step 5: Solve for x
    x = 77,784,437,296.92/320,863.09
  6. Step 6: Final answer
    x = 242,422.52

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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.