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Finding the Fourth Proportional to 311,349.34, 467,089.62 and 100,970.88

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Solution

The fourth proportional to 311,349.34, 467,089.62 and 100,970.88 is: 151,477.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,349.34 : 467,089.62 = 100,970.88 : x
  2. Step 2: Convert to fraction form
    311,349.34/467,089.62 = 100,970.88/x
  3. Step 3: Cross multiply
    311,349.34x = 467,089.62 × 100,970.88
  4. Step 4: Simplify right side
    311,349.34x = 47,162,449,970.27
  5. Step 5: Solve for x
    x = 47,162,449,970.27/311,349.34
  6. Step 6: Final answer
    x = 151,477.60

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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.