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Finding the Fourth Proportional to 256,085.70, 384,420.15 and 150,963.90

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Solution

The fourth proportional to 256,085.70, 384,420.15 and 150,963.90 is: 226,617.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,085.70 : 384,420.15 = 150,963.90 : x
  2. Step 2: Convert to fraction form
    256,085.70/384,420.15 = 150,963.90/x
  3. Step 3: Cross multiply
    256,085.70x = 384,420.15 × 150,963.90
  4. Step 4: Simplify right side
    256,085.70x = 58,033,565,082.59
  5. Step 5: Solve for x
    x = 58,033,565,082.59/256,085.70
  6. Step 6: Final answer
    x = 226,617.75

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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.