Home / 309,225.90-426,725.55-173,258.22

Finding the Fourth Proportional to 309,225.90, 426,725.55 and 173,258.22

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Solution

The fourth proportional to 309,225.90, 426,725.55 and 173,258.22 is: 239,092.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,225.90 : 426,725.55 = 173,258.22 : x
  2. Step 2: Convert to fraction form
    309,225.90/426,725.55 = 173,258.22/x
  3. Step 3: Cross multiply
    309,225.90x = 426,725.55 × 173,258.22
  4. Step 4: Simplify right side
    309,225.90x = 73,933,709,221.52
  5. Step 5: Solve for x
    x = 73,933,709,221.52/309,225.90
  6. Step 6: Final answer
    x = 239,092.87

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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.