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Finding the Fourth Proportional to 274,826, 379,259.92 and 155,594

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Solution

The fourth proportional to 274,826, 379,259.92 and 155,594 is: 214,719.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,826 : 379,259.92 = 155,594 : x
  2. Step 2: Convert to fraction form
    274,826/379,259.92 = 155,594/x
  3. Step 3: Cross multiply
    274,826x = 379,259.92 × 155,594
  4. Step 4: Simplify right side
    274,826x = 59,010,567,992.48
  5. Step 5: Solve for x
    x = 59,010,567,992.48/274,826
  6. Step 6: Final answer
    x = 214,719.74

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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.