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Finding the Fourth Proportional to 254,313.70, 381,523.13 and 83,548.35

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Solution

The fourth proportional to 254,313.70, 381,523.13 and 83,548.35 is: 125,339.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,313.70 : 381,523.13 = 83,548.35 : x
  2. Step 2: Convert to fraction form
    254,313.70/381,523.13 = 83,548.35/x
  3. Step 3: Cross multiply
    254,313.70x = 381,523.13 × 83,548.35
  4. Step 4: Simplify right side
    254,313.70x = 31,875,627,998.34
  5. Step 5: Solve for x
    x = 31,875,627,998.34/254,313.70
  6. Step 6: Final answer
    x = 125,339.80

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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.