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Finding the Fourth Proportional to 203,381.48, 280,571.51 and 127,971.56

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Solution

The fourth proportional to 203,381.48, 280,571.51 and 127,971.56 is: 176,541.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,381.48 : 280,571.51 = 127,971.56 : x
  2. Step 2: Convert to fraction form
    203,381.48/280,571.51 = 127,971.56/x
  3. Step 3: Cross multiply
    203,381.48x = 280,571.51 × 127,971.56
  4. Step 4: Simplify right side
    203,381.48x = 35,905,172,798.71
  5. Step 5: Solve for x
    x = 35,905,172,798.71/203,381.48
  6. Step 6: Final answer
    x = 176,541.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.