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Finding the Fourth Proportional to 253,054.64, 379,454.52 and 84,516.32

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Solution

The fourth proportional to 253,054.64, 379,454.52 and 84,516.32 is: 126,731.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,054.64 : 379,454.52 = 84,516.32 : x
  2. Step 2: Convert to fraction form
    253,054.64/379,454.52 = 84,516.32/x
  3. Step 3: Cross multiply
    253,054.64x = 379,454.52 × 84,516.32
  4. Step 4: Simplify right side
    253,054.64x = 32,070,099,637.77
  5. Step 5: Solve for x
    x = 32,070,099,637.77/253,054.64
  6. Step 6: Final answer
    x = 126,731.92

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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.