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Finding the Fourth Proportional to 220,000.60, 330,000.90 and 153,515.80

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Solution

The fourth proportional to 220,000.60, 330,000.90 and 153,515.80 is: 230,273.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,000.60 : 330,000.90 = 153,515.80 : x
  2. Step 2: Convert to fraction form
    220,000.60/330,000.90 = 153,515.80/x
  3. Step 3: Cross multiply
    220,000.60x = 330,000.90 × 153,515.80
  4. Step 4: Simplify right side
    220,000.60x = 50,660,352,164.22
  5. Step 5: Solve for x
    x = 50,660,352,164.22/220,000.60
  6. Step 6: Final answer
    x = 230,273.70

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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.