Home / 429,945.50-645,177.44-149,659.58

Finding the Fourth Proportional to 429,945.50, 645,177.44 and 149,659.58

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Solution

The fourth proportional to 429,945.50, 645,177.44 and 149,659.58 is: 224,579.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,945.50 : 645,177.44 = 149,659.58 : x
  2. Step 2: Convert to fraction form
    429,945.50/645,177.44 = 149,659.58/x
  3. Step 3: Cross multiply
    429,945.50x = 645,177.44 × 149,659.58
  4. Step 4: Simplify right side
    429,945.50x = 96,556,981,844.14
  5. Step 5: Solve for x
    x = 96,556,981,844.14/429,945.50
  6. Step 6: Final answer
    x = 224,579.59

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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.