Home / 320,928.31-442,894.91-177,688.35

Finding the Fourth Proportional to 320,928.31, 442,894.91 and 177,688.35

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Solution

The fourth proportional to 320,928.31, 442,894.91 and 177,688.35 is: 245,217.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,928.31 : 442,894.91 = 177,688.35 : x
  2. Step 2: Convert to fraction form
    320,928.31/442,894.91 = 177,688.35/x
  3. Step 3: Cross multiply
    320,928.31x = 442,894.91 × 177,688.35
  4. Step 4: Simplify right side
    320,928.31x = 78,697,266,000.09
  5. Step 5: Solve for x
    x = 78,697,266,000.09/320,928.31
  6. Step 6: Final answer
    x = 245,217.59

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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.