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Finding the Fourth Proportional to 255,983.63, 383,461.38 and 127,512.96

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Solution

The fourth proportional to 255,983.63, 383,461.38 and 127,512.96 is: 191,013.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,983.63 : 383,461.38 = 127,512.96 : x
  2. Step 2: Convert to fraction form
    255,983.63/383,461.38 = 127,512.96/x
  3. Step 3: Cross multiply
    255,983.63x = 383,461.38 × 127,512.96
  4. Step 4: Simplify right side
    255,983.63x = 48,896,295,609.48
  5. Step 5: Solve for x
    x = 48,896,295,609.48/255,983.63
  6. Step 6: Final answer
    x = 191,013.37

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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.