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Finding the Fourth Proportional to 485,518, 728,277 and 153,094

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Solution

The fourth proportional to 485,518, 728,277 and 153,094 is: 229,641

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,518 : 728,277 = 153,094 : x
  2. Step 2: Convert to fraction form
    485,518/728,277 = 153,094/x
  3. Step 3: Cross multiply
    485,518x = 728,277 × 153,094
  4. Step 4: Simplify right side
    485,518x = 111,494,839,038
  5. Step 5: Solve for x
    x = 111,494,839,038/485,518
  6. Step 6: Final answer
    x = 229,641

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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.