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Finding the Fourth Proportional to 225,646.08, 311,404.68 and 130,156.80

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Solution

The fourth proportional to 225,646.08, 311,404.68 and 130,156.80 is: 179,623.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,646.08 : 311,404.68 = 130,156.80 : x
  2. Step 2: Convert to fraction form
    225,646.08/311,404.68 = 130,156.80/x
  3. Step 3: Cross multiply
    225,646.08x = 311,404.68 × 130,156.80
  4. Step 4: Simplify right side
    225,646.08x = 40,531,436,653.82
  5. Step 5: Solve for x
    x = 40,531,436,653.82/225,646.08
  6. Step 6: Final answer
    x = 179,623.93

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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.