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Finding the Fourth Proportional to 220,630.40, 330,945.80 and 154,200.27

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Solution

The fourth proportional to 220,630.40, 330,945.80 and 154,200.27 is: 231,300.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,630.40 : 330,945.80 = 154,200.27 : x
  2. Step 2: Convert to fraction form
    220,630.40/330,945.80 = 154,200.27/x
  3. Step 3: Cross multiply
    220,630.40x = 330,945.80 × 154,200.27
  4. Step 4: Simplify right side
    220,630.40x = 51,031,931,715.37
  5. Step 5: Solve for x
    x = 51,031,931,715.37/220,630.40
  6. Step 6: Final answer
    x = 231,300.54

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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.