Home / 645,313.28-968,016-171,996.16

Finding the Fourth Proportional to 645,313.28, 968,016 and 171,996.16

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Solution

The fourth proportional to 645,313.28, 968,016 and 171,996.16 is: 258,006.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,313.28 : 968,016 = 171,996.16 : x
  2. Step 2: Convert to fraction form
    645,313.28/968,016 = 171,996.16/x
  3. Step 3: Cross multiply
    645,313.28x = 968,016 × 171,996.16
  4. Step 4: Simplify right side
    645,313.28x = 166,495,034,818.56
  5. Step 5: Solve for x
    x = 166,495,034,818.56/645,313.28
  6. Step 6: Final answer
    x = 258,006.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.