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Finding the Fourth Proportional to 256,520.94, 384,781.41 and 69,532.44

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Solution

The fourth proportional to 256,520.94, 384,781.41 and 69,532.44 is: 104,298.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,520.94 : 384,781.41 = 69,532.44 : x
  2. Step 2: Convert to fraction form
    256,520.94/384,781.41 = 69,532.44/x
  3. Step 3: Cross multiply
    256,520.94x = 384,781.41 × 69,532.44
  4. Step 4: Simplify right side
    256,520.94x = 26,754,790,303.94
  5. Step 5: Solve for x
    x = 26,754,790,303.94/256,520.94
  6. Step 6: Final answer
    x = 104,298.66

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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.