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Finding the Fourth Proportional to 256,095.90, 384,489.45 and 162,783.90

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Solution

The fourth proportional to 256,095.90, 384,489.45 and 162,783.90 is: 244,395.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,095.90 : 384,489.45 = 162,783.90 : x
  2. Step 2: Convert to fraction form
    256,095.90/384,489.45 = 162,783.90/x
  3. Step 3: Cross multiply
    256,095.90x = 384,489.45 × 162,783.90
  4. Step 4: Simplify right side
    256,095.90x = 62,588,692,179.86
  5. Step 5: Solve for x
    x = 62,588,692,179.86/256,095.90
  6. Step 6: Final answer
    x = 244,395.53

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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.