Home / 399,923.40-551,900.87-238,792.53

Finding the Fourth Proportional to 399,923.40, 551,900.87 and 238,792.53

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Solution

The fourth proportional to 399,923.40, 551,900.87 and 238,792.53 is: 329,537.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,923.40 : 551,900.87 = 238,792.53 : x
  2. Step 2: Convert to fraction form
    399,923.40/551,900.87 = 238,792.53/x
  3. Step 3: Cross multiply
    399,923.40x = 551,900.87 × 238,792.53
  4. Step 4: Simplify right side
    399,923.40x = 131,789,805,056.50
  5. Step 5: Solve for x
    x = 131,789,805,056.50/399,923.40
  6. Step 6: Final answer
    x = 329,537.62

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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.