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Finding the Fourth Proportional to 311,780.72, 467,555.60 and 112,047.28

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Solution

The fourth proportional to 311,780.72, 467,555.60 and 112,047.28 is: 168,029.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,780.72 : 467,555.60 = 112,047.28 : x
  2. Step 2: Convert to fraction form
    311,780.72/467,555.60 = 112,047.28/x
  3. Step 3: Cross multiply
    311,780.72x = 467,555.60 × 112,047.28
  4. Step 4: Simplify right side
    311,780.72x = 52,388,333,228.77
  5. Step 5: Solve for x
    x = 52,388,333,228.77/311,780.72
  6. Step 6: Final answer
    x = 168,029.42

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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.