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Finding the Fourth Proportional to 254,815.20, 382,222.80 and 239,068.80

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Solution

The fourth proportional to 254,815.20, 382,222.80 and 239,068.80 is: 358,603.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,815.20 : 382,222.80 = 239,068.80 : x
  2. Step 2: Convert to fraction form
    254,815.20/382,222.80 = 239,068.80/x
  3. Step 3: Cross multiply
    254,815.20x = 382,222.80 × 239,068.80
  4. Step 4: Simplify right side
    254,815.20x = 91,377,546,128.64
  5. Step 5: Solve for x
    x = 91,377,546,128.64/254,815.20
  6. Step 6: Final answer
    x = 358,603.20

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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.