Home / 218,621.90-301,837.50-178,431.50

Finding the Fourth Proportional to 218,621.90, 301,837.50 and 178,431.50

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Solution

The fourth proportional to 218,621.90, 301,837.50 and 178,431.50 is: 246,349.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,621.90 : 301,837.50 = 178,431.50 : x
  2. Step 2: Convert to fraction form
    218,621.90/301,837.50 = 178,431.50/x
  3. Step 3: Cross multiply
    218,621.90x = 301,837.50 × 178,431.50
  4. Step 4: Simplify right side
    218,621.90x = 53,857,317,881.25
  5. Step 5: Solve for x
    x = 53,857,317,881.25/218,621.90
  6. Step 6: Final answer
    x = 246,349.14

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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.