Home / 315,189.90-434,945.09-179,205.08

Finding the Fourth Proportional to 315,189.90, 434,945.09 and 179,205.08

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Solution

The fourth proportional to 315,189.90, 434,945.09 and 179,205.08 is: 247,293.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,189.90 : 434,945.09 = 179,205.08 : x
  2. Step 2: Convert to fraction form
    315,189.90/434,945.09 = 179,205.08/x
  3. Step 3: Cross multiply
    315,189.90x = 434,945.09 × 179,205.08
  4. Step 4: Simplify right side
    315,189.90x = 77,944,367,922.34
  5. Step 5: Solve for x
    x = 77,944,367,922.34/315,189.90
  6. Step 6: Final answer
    x = 247,293.36

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1.5x scale

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.