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Finding the Fourth Proportional to 217,877.76, 300,624.66 and 127,192.56

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Solution

The fourth proportional to 217,877.76, 300,624.66 and 127,192.56 is: 175,498.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,877.76 : 300,624.66 = 127,192.56 : x
  2. Step 2: Convert to fraction form
    217,877.76/300,624.66 = 127,192.56/x
  3. Step 3: Cross multiply
    217,877.76x = 300,624.66 × 127,192.56
  4. Step 4: Simplify right side
    217,877.76x = 38,237,220,104.53
  5. Step 5: Solve for x
    x = 38,237,220,104.53/217,877.76
  6. Step 6: Final answer
    x = 175,498.50

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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.