Home / 320,640.04-442,496.28-177,397.75

Finding the Fourth Proportional to 320,640.04, 442,496.28 and 177,397.75

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Solution

The fourth proportional to 320,640.04, 442,496.28 and 177,397.75 is: 244,816.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,640.04 : 442,496.28 = 177,397.75 : x
  2. Step 2: Convert to fraction form
    320,640.04/442,496.28 = 177,397.75/x
  3. Step 3: Cross multiply
    320,640.04x = 442,496.28 × 177,397.75
  4. Step 4: Simplify right side
    320,640.04x = 78,497,844,455.37
  5. Step 5: Solve for x
    x = 78,497,844,455.37/320,640.04
  6. Step 6: Final answer
    x = 244,816.10

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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.