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Finding the Fourth Proportional to 218,788, 301,927.44 and 118,186

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Solution

The fourth proportional to 218,788, 301,927.44 and 118,186 is: 163,096.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,788 : 301,927.44 = 118,186 : x
  2. Step 2: Convert to fraction form
    218,788/301,927.44 = 118,186/x
  3. Step 3: Cross multiply
    218,788x = 301,927.44 × 118,186
  4. Step 4: Simplify right side
    218,788x = 35,683,596,423.84
  5. Step 5: Solve for x
    x = 35,683,596,423.84/218,788
  6. Step 6: Final answer
    x = 163,096.68

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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.