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Finding the Fourth Proportional to 610,009.68, 915,073.64 and 189,172.56

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Solution

The fourth proportional to 610,009.68, 915,073.64 and 189,172.56 is: 283,777.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,009.68 : 915,073.64 = 189,172.56 : x
  2. Step 2: Convert to fraction form
    610,009.68/915,073.64 = 189,172.56/x
  3. Step 3: Cross multiply
    610,009.68x = 915,073.64 × 189,172.56
  4. Step 4: Simplify right side
    610,009.68x = 173,106,823,067.32
  5. Step 5: Solve for x
    x = 173,106,823,067.32/610,009.68
  6. Step 6: Final answer
    x = 283,777.17

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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.