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Finding the Fourth Proportional to 218,136.06, 300,926.73 and 127,495.86

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Solution

The fourth proportional to 218,136.06, 300,926.73 and 127,495.86 is: 175,885.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,136.06 : 300,926.73 = 127,495.86 : x
  2. Step 2: Convert to fraction form
    218,136.06/300,926.73 = 127,495.86/x
  3. Step 3: Cross multiply
    218,136.06x = 300,926.73 × 127,495.86
  4. Step 4: Simplify right side
    218,136.06x = 38,366,912,238.34
  5. Step 5: Solve for x
    x = 38,366,912,238.34/218,136.06
  6. Step 6: Final answer
    x = 175,885.24

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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.