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Finding the Fourth Proportional to 228,499.92, 315,232.17 and 137,804.31

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Solution

The fourth proportional to 228,499.92, 315,232.17 and 137,804.31 is: 190,111.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,499.92 : 315,232.17 = 137,804.31 : x
  2. Step 2: Convert to fraction form
    228,499.92/315,232.17 = 137,804.31/x
  3. Step 3: Cross multiply
    228,499.92x = 315,232.17 × 137,804.31
  4. Step 4: Simplify right side
    228,499.92x = 43,440,351,676.65
  5. Step 5: Solve for x
    x = 43,440,351,676.65/228,499.92
  6. Step 6: Final answer
    x = 190,111.01

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1.5x scale

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.