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Finding the Fourth Proportional to 254,359.60, 381,539.40 and 76,848.10

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Solution

The fourth proportional to 254,359.60, 381,539.40 and 76,848.10 is: 115,272.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,359.60 : 381,539.40 = 76,848.10 : x
  2. Step 2: Convert to fraction form
    254,359.60/381,539.40 = 76,848.10/x
  3. Step 3: Cross multiply
    254,359.60x = 381,539.40 × 76,848.10
  4. Step 4: Simplify right side
    254,359.60x = 29,320,577,965.14
  5. Step 5: Solve for x
    x = 29,320,577,965.14/254,359.60
  6. Step 6: Final answer
    x = 115,272.15

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1.5x scale

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.