Home / 320,639.54-442,495.59-177,397.25

Finding the Fourth Proportional to 320,639.54, 442,495.59 and 177,397.25

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Solution

The fourth proportional to 320,639.54, 442,495.59 and 177,397.25 is: 244,815.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,639.54 : 442,495.59 = 177,397.25 : x
  2. Step 2: Convert to fraction form
    320,639.54/442,495.59 = 177,397.25/x
  3. Step 3: Cross multiply
    320,639.54x = 442,495.59 × 177,397.25
  4. Step 4: Simplify right side
    320,639.54x = 78,497,500,803.13
  5. Step 5: Solve for x
    x = 78,497,500,803.13/320,639.54
  6. Step 6: Final answer
    x = 244,815.41

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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.