Home / 215,705.52-323,559-65,945.22

Finding the Fourth Proportional to 215,705.52, 323,559 and 65,945.22

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Solution

The fourth proportional to 215,705.52, 323,559 and 65,945.22 is: 98,918.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,705.52 : 323,559 = 65,945.22 : x
  2. Step 2: Convert to fraction form
    215,705.52/323,559 = 65,945.22/x
  3. Step 3: Cross multiply
    215,705.52x = 323,559 × 65,945.22
  4. Step 4: Simplify right side
    215,705.52x = 21,337,169,437.98
  5. Step 5: Solve for x
    x = 21,337,169,437.98/215,705.52
  6. Step 6: Final answer
    x = 98,918.05

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1.5x scale

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.