Home / 228,743.10-343,054.74-68,776.20

Finding the Fourth Proportional to 228,743.10, 343,054.74 and 68,776.20

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Solution

The fourth proportional to 228,743.10, 343,054.74 and 68,776.20 is: 103,146.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,743.10 : 343,054.74 = 68,776.20 : x
  2. Step 2: Convert to fraction form
    228,743.10/343,054.74 = 68,776.20/x
  3. Step 3: Cross multiply
    228,743.10x = 343,054.74 × 68,776.20
  4. Step 4: Simplify right side
    228,743.10x = 23,594,001,409.19
  5. Step 5: Solve for x
    x = 23,594,001,409.19/228,743.10
  6. Step 6: Final answer
    x = 103,146.29

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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.