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Finding the Fourth Proportional to 237,969.21, 356,838.99 and 138,154.53

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Solution

The fourth proportional to 237,969.21, 356,838.99 and 138,154.53 is: 207,165.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,969.21 : 356,838.99 = 138,154.53 : x
  2. Step 2: Convert to fraction form
    237,969.21/356,838.99 = 138,154.53/x
  3. Step 3: Cross multiply
    237,969.21x = 356,838.99 × 138,154.53
  4. Step 4: Simplify right side
    237,969.21x = 49,298,922,949.12
  5. Step 5: Solve for x
    x = 49,298,922,949.12/237,969.21
  6. Step 6: Final answer
    x = 207,165.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.