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Finding the Fourth Proportional to 269,991.48, 404,981.73 and 70,307.44

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Solution

The fourth proportional to 269,991.48, 404,981.73 and 70,307.44 is: 105,459.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,991.48 : 404,981.73 = 70,307.44 : x
  2. Step 2: Convert to fraction form
    269,991.48/404,981.73 = 70,307.44/x
  3. Step 3: Cross multiply
    269,991.48x = 404,981.73 × 70,307.44
  4. Step 4: Simplify right side
    269,991.48x = 28,473,228,683.07
  5. Step 5: Solve for x
    x = 28,473,228,683.07/269,991.48
  6. Step 6: Final answer
    x = 105,459.73

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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.