Home / 215,409.23-323,160.45-65,645.56

Finding the Fourth Proportional to 215,409.23, 323,160.45 and 65,645.56

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Solution

The fourth proportional to 215,409.23, 323,160.45 and 65,645.56 is: 98,482.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,409.23 : 323,160.45 = 65,645.56 : x
  2. Step 2: Convert to fraction form
    215,409.23/323,160.45 = 65,645.56/x
  3. Step 3: Cross multiply
    215,409.23x = 323,160.45 × 65,645.56
  4. Step 4: Simplify right side
    215,409.23x = 21,214,048,710.10
  5. Step 5: Solve for x
    x = 21,214,048,710.10/215,409.23
  6. Step 6: Final answer
    x = 98,482.54

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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.