Home / 320,865.21-442,799.22-175,668.55

Finding the Fourth Proportional to 320,865.21, 442,799.22 and 175,668.55

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Solution

The fourth proportional to 320,865.21, 442,799.22 and 175,668.55 is: 242,425.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,865.21 : 442,799.22 = 175,668.55 : x
  2. Step 2: Convert to fraction form
    320,865.21/442,799.22 = 175,668.55/x
  3. Step 3: Cross multiply
    320,865.21x = 442,799.22 × 175,668.55
  4. Step 4: Simplify right side
    320,865.21x = 77,785,896,918.53
  5. Step 5: Solve for x
    x = 77,785,896,918.53/320,865.21
  6. Step 6: Final answer
    x = 242,425.46

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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.