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Finding the Fourth Proportional to 308,330.36, 425,564.48 and 187,446

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Solution

The fourth proportional to 308,330.36, 425,564.48 and 187,446 is: 258,717.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,330.36 : 425,564.48 = 187,446 : x
  2. Step 2: Convert to fraction form
    308,330.36/425,564.48 = 187,446/x
  3. Step 3: Cross multiply
    308,330.36x = 425,564.48 × 187,446
  4. Step 4: Simplify right side
    308,330.36x = 79,770,359,518.08
  5. Step 5: Solve for x
    x = 79,770,359,518.08/308,330.36
  6. Step 6: Final answer
    x = 258,717.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.