Home / 320,928.28-442,894.86-177,688.32

Finding the Fourth Proportional to 320,928.28, 442,894.86 and 177,688.32

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Solution

The fourth proportional to 320,928.28, 442,894.86 and 177,688.32 is: 245,217.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,928.28 : 442,894.86 = 177,688.32 : x
  2. Step 2: Convert to fraction form
    320,928.28/442,894.86 = 177,688.32/x
  3. Step 3: Cross multiply
    320,928.28x = 442,894.86 × 177,688.32
  4. Step 4: Simplify right side
    320,928.28x = 78,697,244,054.26
  5. Step 5: Solve for x
    x = 78,697,244,054.26/320,928.28
  6. Step 6: Final answer
    x = 245,217.54

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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.