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Finding the Fourth Proportional to 362,783.79, 544,181.18 and 138,156.66

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Solution

The fourth proportional to 362,783.79, 544,181.18 and 138,156.66 is: 207,237.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,783.79 : 544,181.18 = 138,156.66 : x
  2. Step 2: Convert to fraction form
    362,783.79/544,181.18 = 138,156.66/x
  3. Step 3: Cross multiply
    362,783.79x = 544,181.18 × 138,156.66
  4. Step 4: Simplify right side
    362,783.79x = 75,182,253,572.88
  5. Step 5: Solve for x
    x = 75,182,253,572.88/362,783.79
  6. Step 6: Final answer
    x = 207,237.08

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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.