Home / 436,128.76-653,979.91-179,913.61

Finding the Fourth Proportional to 436,128.76, 653,979.91 and 179,913.61

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Solution

The fourth proportional to 436,128.76, 653,979.91 and 179,913.61 is: 269,782.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,128.76 : 653,979.91 = 179,913.61 : x
  2. Step 2: Convert to fraction form
    436,128.76/653,979.91 = 179,913.61/x
  3. Step 3: Cross multiply
    436,128.76x = 653,979.91 × 179,913.61
  4. Step 4: Simplify right side
    436,128.76x = 117,659,886,475.58
  5. Step 5: Solve for x
    x = 117,659,886,475.58/436,128.76
  6. Step 6: Final answer
    x = 269,782.45

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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.