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Finding the Fourth Proportional to 218,630.53, 301,710.75 and 126,767.62

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Solution

The fourth proportional to 218,630.53, 301,710.75 and 126,767.62 is: 174,939.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,630.53 : 301,710.75 = 126,767.62 : x
  2. Step 2: Convert to fraction form
    218,630.53/301,710.75 = 126,767.62/x
  3. Step 3: Cross multiply
    218,630.53x = 301,710.75 × 126,767.62
  4. Step 4: Simplify right side
    218,630.53x = 38,247,153,705.92
  5. Step 5: Solve for x
    x = 38,247,153,705.92/218,630.53
  6. Step 6: Final answer
    x = 174,939.67

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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.