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Finding the Fourth Proportional to 271,495.80, 407,080.08 and 121,708.98

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Solution

The fourth proportional to 271,495.80, 407,080.08 and 121,708.98 is: 182,490.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,495.80 : 407,080.08 = 121,708.98 : x
  2. Step 2: Convert to fraction form
    271,495.80/407,080.08 = 121,708.98/x
  3. Step 3: Cross multiply
    271,495.80x = 407,080.08 × 121,708.98
  4. Step 4: Simplify right side
    271,495.80x = 49,545,301,315.12
  5. Step 5: Solve for x
    x = 49,545,301,315.12/271,495.80
  6. Step 6: Final answer
    x = 182,490.12

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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.