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Finding the Fourth Proportional to 256,650.24, 384,968.88 and 69,656.88

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Solution

The fourth proportional to 256,650.24, 384,968.88 and 69,656.88 is: 104,483.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,650.24 : 384,968.88 = 69,656.88 : x
  2. Step 2: Convert to fraction form
    256,650.24/384,968.88 = 69,656.88/x
  3. Step 3: Cross multiply
    256,650.24x = 384,968.88 × 69,656.88
  4. Step 4: Simplify right side
    256,650.24x = 26,815,731,077.89
  5. Step 5: Solve for x
    x = 26,815,731,077.89/256,650.24
  6. Step 6: Final answer
    x = 104,483.56

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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.