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Finding the Fourth Proportional to 171,378.48, 256,624.80 and 118,234.32

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Solution

The fourth proportional to 171,378.48, 256,624.80 and 118,234.32 is: 177,045.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,378.48 : 256,624.80 = 118,234.32 : x
  2. Step 2: Convert to fraction form
    171,378.48/256,624.80 = 118,234.32/x
  3. Step 3: Cross multiply
    171,378.48x = 256,624.80 × 118,234.32
  4. Step 4: Simplify right side
    171,378.48x = 30,341,858,723.14
  5. Step 5: Solve for x
    x = 30,341,858,723.14/171,378.48
  6. Step 6: Final answer
    x = 177,045.91

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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.