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Finding the Fourth Proportional to 256,710.84, 384,970.38 and 88,183.32

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Solution

The fourth proportional to 256,710.84, 384,970.38 and 88,183.32 is: 132,242.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,710.84 : 384,970.38 = 88,183.32 : x
  2. Step 2: Convert to fraction form
    256,710.84/384,970.38 = 88,183.32/x
  3. Step 3: Cross multiply
    256,710.84x = 384,970.38 × 88,183.32
  4. Step 4: Simplify right side
    256,710.84x = 33,947,966,210.06
  5. Step 5: Solve for x
    x = 33,947,966,210.06/256,710.84
  6. Step 6: Final answer
    x = 132,242.04

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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.