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Finding the Fourth Proportional to 271,386.80, 374,268.72 and 169,421.64

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Solution

The fourth proportional to 271,386.80, 374,268.72 and 169,421.64 is: 233,648.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,386.80 : 374,268.72 = 169,421.64 : x
  2. Step 2: Convert to fraction form
    271,386.80/374,268.72 = 169,421.64/x
  3. Step 3: Cross multiply
    271,386.80x = 374,268.72 × 169,421.64
  4. Step 4: Simplify right side
    271,386.80x = 63,409,220,343.10
  5. Step 5: Solve for x
    x = 63,409,220,343.10/271,386.80
  6. Step 6: Final answer
    x = 233,648.87

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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.