Home / 320,640.42-442,467.54-175,443.06

Finding the Fourth Proportional to 320,640.42, 442,467.54 and 175,443.06

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Solution

The fourth proportional to 320,640.42, 442,467.54 and 175,443.06 is: 242,102.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,640.42 : 442,467.54 = 175,443.06 : x
  2. Step 2: Convert to fraction form
    320,640.42/442,467.54 = 175,443.06/x
  3. Step 3: Cross multiply
    320,640.42x = 442,467.54 × 175,443.06
  4. Step 4: Simplify right side
    320,640.42x = 77,627,859,168.27
  5. Step 5: Solve for x
    x = 77,627,859,168.27/320,640.42
  6. Step 6: Final answer
    x = 242,102.54

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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.