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Finding the Fourth Proportional to 256,644.96, 384,967.62 and 69,656.46

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Solution

The fourth proportional to 256,644.96, 384,967.62 and 69,656.46 is: 104,484.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,644.96 : 384,967.62 = 69,656.46 : x
  2. Step 2: Convert to fraction form
    256,644.96/384,967.62 = 69,656.46/x
  3. Step 3: Cross multiply
    256,644.96x = 384,967.62 × 69,656.46
  4. Step 4: Simplify right side
    256,644.96x = 26,815,481,623.83
  5. Step 5: Solve for x
    x = 26,815,481,623.83/256,644.96
  6. Step 6: Final answer
    x = 104,484.74

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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.