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Finding the Fourth Proportional to 254,978.45, 351,870.62 and 141,801.20

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Solution

The fourth proportional to 254,978.45, 351,870.62 and 141,801.20 is: 195,685.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,978.45 : 351,870.62 = 141,801.20 : x
  2. Step 2: Convert to fraction form
    254,978.45/351,870.62 = 141,801.20/x
  3. Step 3: Cross multiply
    254,978.45x = 351,870.62 × 141,801.20
  4. Step 4: Simplify right side
    254,978.45x = 49,895,676,160.74
  5. Step 5: Solve for x
    x = 49,895,676,160.74/254,978.45
  6. Step 6: Final answer
    x = 195,685.86

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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.