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Finding the Fourth Proportional to 256,374.56, 384,625.28 and 106,569.92

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Solution

The fourth proportional to 256,374.56, 384,625.28 and 106,569.92 is: 159,881.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,374.56 : 384,625.28 = 106,569.92 : x
  2. Step 2: Convert to fraction form
    256,374.56/384,625.28 = 106,569.92/x
  3. Step 3: Cross multiply
    256,374.56x = 384,625.28 × 106,569.92
  4. Step 4: Simplify right side
    256,374.56x = 40,989,485,319.58
  5. Step 5: Solve for x
    x = 40,989,485,319.58/256,374.56
  6. Step 6: Final answer
    x = 159,881.25

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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.