Home / 399,211.36-551,004.30-263,269.84

Finding the Fourth Proportional to 399,211.36, 551,004.30 and 263,269.84

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Solution

The fourth proportional to 399,211.36, 551,004.30 and 263,269.84 is: 363,373.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,211.36 : 551,004.30 = 263,269.84 : x
  2. Step 2: Convert to fraction form
    399,211.36/551,004.30 = 263,269.84/x
  3. Step 3: Cross multiply
    399,211.36x = 551,004.30 × 263,269.84
  4. Step 4: Simplify right side
    399,211.36x = 145,062,813,900.31
  5. Step 5: Solve for x
    x = 145,062,813,900.31/399,211.36
  6. Step 6: Final answer
    x = 363,373.46

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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.