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Finding the Fourth Proportional to 231,006.25, 346,647.62 and 99,678.25

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Solution

The fourth proportional to 231,006.25, 346,647.62 and 99,678.25 is: 149,577.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,006.25 : 346,647.62 = 99,678.25 : x
  2. Step 2: Convert to fraction form
    231,006.25/346,647.62 = 99,678.25/x
  3. Step 3: Cross multiply
    231,006.25x = 346,647.62 × 99,678.25
  4. Step 4: Simplify right side
    231,006.25x = 34,553,228,128.27
  5. Step 5: Solve for x
    x = 34,553,228,128.27/231,006.25
  6. Step 6: Final answer
    x = 149,577.03

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1.5x scale

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.