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Finding the Fourth Proportional to 171,270.66, 256,729.41 and 71,488.92

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Solution

The fourth proportional to 171,270.66, 256,729.41 and 71,488.92 is: 107,159.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,270.66 : 256,729.41 = 71,488.92 : x
  2. Step 2: Convert to fraction form
    171,270.66/256,729.41 = 71,488.92/x
  3. Step 3: Cross multiply
    171,270.66x = 256,729.41 × 71,488.92
  4. Step 4: Simplify right side
    171,270.66x = 18,353,308,253.14
  5. Step 5: Solve for x
    x = 18,353,308,253.14/171,270.66
  6. Step 6: Final answer
    x = 107,159.67

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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.