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Finding the Fourth Proportional to 271,411.40, 407,141.40 and 113,607.20

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Solution

The fourth proportional to 271,411.40, 407,141.40 and 113,607.20 is: 170,420.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,411.40 : 407,141.40 = 113,607.20 : x
  2. Step 2: Convert to fraction form
    271,411.40/407,141.40 = 113,607.20/x
  3. Step 3: Cross multiply
    271,411.40x = 407,141.40 × 113,607.20
  4. Step 4: Simplify right side
    271,411.40x = 46,254,194,458.08
  5. Step 5: Solve for x
    x = 46,254,194,458.08/271,411.40
  6. Step 6: Final answer
    x = 170,420.97

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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.