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Finding the Fourth Proportional to 461,978.78, 637,530.66 and 250,010.78

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Solution

The fourth proportional to 461,978.78, 637,530.66 and 250,010.78 is: 345,014.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,978.78 : 637,530.66 = 250,010.78 : x
  2. Step 2: Convert to fraction form
    461,978.78/637,530.66 = 250,010.78/x
  3. Step 3: Cross multiply
    461,978.78x = 637,530.66 × 250,010.78
  4. Step 4: Simplify right side
    461,978.78x = 159,389,537,580.52
  5. Step 5: Solve for x
    x = 159,389,537,580.52/461,978.78
  6. Step 6: Final answer
    x = 345,014.85

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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.