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Finding the Fourth Proportional to 216,875.44, 299,396.64 and 136,347.31

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Solution

The fourth proportional to 216,875.44, 299,396.64 and 136,347.31 is: 188,227.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,875.44 : 299,396.64 = 136,347.31 : x
  2. Step 2: Convert to fraction form
    216,875.44/299,396.64 = 136,347.31/x
  3. Step 3: Cross multiply
    216,875.44x = 299,396.64 × 136,347.31
  4. Step 4: Simplify right side
    216,875.44x = 40,821,926,487.04
  5. Step 5: Solve for x
    x = 40,821,926,487.04/216,875.44
  6. Step 6: Final answer
    x = 188,227.52

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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.