Home / 399,190.11-551,080.08-254,140.10

Finding the Fourth Proportional to 399,190.11, 551,080.08 and 254,140.10

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Solution

The fourth proportional to 399,190.11, 551,080.08 and 254,140.10 is: 350,839.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,190.11 : 551,080.08 = 254,140.10 : x
  2. Step 2: Convert to fraction form
    399,190.11/551,080.08 = 254,140.10/x
  3. Step 3: Cross multiply
    399,190.11x = 551,080.08 × 254,140.10
  4. Step 4: Simplify right side
    399,190.11x = 140,051,543,883.81
  5. Step 5: Solve for x
    x = 140,051,543,883.81/399,190.11
  6. Step 6: Final answer
    x = 350,839.21

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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.