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Finding the Fourth Proportional to 256,472.80, 384,709.20 and 244,225.60

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Solution

The fourth proportional to 256,472.80, 384,709.20 and 244,225.60 is: 366,338.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,472.80 : 384,709.20 = 244,225.60 : x
  2. Step 2: Convert to fraction form
    256,472.80/384,709.20 = 244,225.60/x
  3. Step 3: Cross multiply
    256,472.80x = 384,709.20 × 244,225.60
  4. Step 4: Simplify right side
    256,472.80x = 93,955,835,195.52
  5. Step 5: Solve for x
    x = 93,955,835,195.52/256,472.80
  6. Step 6: Final answer
    x = 366,338.40

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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.