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Finding the Fourth Proportional to 271,238.64, 406,802.36 and 102,700.82

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Solution

The fourth proportional to 271,238.64, 406,802.36 and 102,700.82 is: 154,030.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,238.64 : 406,802.36 = 102,700.82 : x
  2. Step 2: Convert to fraction form
    271,238.64/406,802.36 = 102,700.82/x
  3. Step 3: Cross multiply
    271,238.64x = 406,802.36 × 102,700.82
  4. Step 4: Simplify right side
    271,238.64x = 41,778,935,949.94
  5. Step 5: Solve for x
    x = 41,778,935,949.94/271,238.64
  6. Step 6: Final answer
    x = 154,030.18

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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.