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Finding the Fourth Proportional to 250,368.66, 345,307.68 and 220,089.60

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Solution

The fourth proportional to 250,368.66, 345,307.68 and 220,089.60 is: 303,546.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,368.66 : 345,307.68 = 220,089.60 : x
  2. Step 2: Convert to fraction form
    250,368.66/345,307.68 = 220,089.60/x
  3. Step 3: Cross multiply
    250,368.66x = 345,307.68 × 220,089.60
  4. Step 4: Simplify right side
    250,368.66x = 75,998,629,168.13
  5. Step 5: Solve for x
    x = 75,998,629,168.13/250,368.66
  6. Step 6: Final answer
    x = 303,546.89

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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.