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Finding the Fourth Proportional to 386,956.64, 580,659.06 and 162,297.02

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Solution

The fourth proportional to 386,956.64, 580,659.06 and 162,297.02 is: 243,539.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,956.64 : 580,659.06 = 162,297.02 : x
  2. Step 2: Convert to fraction form
    386,956.64/580,659.06 = 162,297.02/x
  3. Step 3: Cross multiply
    386,956.64x = 580,659.06 × 162,297.02
  4. Step 4: Simplify right side
    386,956.64x = 94,239,235,074.00
  5. Step 5: Solve for x
    x = 94,239,235,074.00/386,956.64
  6. Step 6: Final answer
    x = 243,539.52

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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.