Home / 252,389.37-378,502.10-83,864.43

Finding the Fourth Proportional to 252,389.37, 378,502.10 and 83,864.43

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Solution

The fourth proportional to 252,389.37, 378,502.10 and 83,864.43 is: 125,769.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,389.37 : 378,502.10 = 83,864.43 : x
  2. Step 2: Convert to fraction form
    252,389.37/378,502.10 = 83,864.43/x
  3. Step 3: Cross multiply
    252,389.37x = 378,502.10 × 83,864.43
  4. Step 4: Simplify right side
    252,389.37x = 31,742,862,450.98
  5. Step 5: Solve for x
    x = 31,742,862,450.98/252,389.37
  6. Step 6: Final answer
    x = 125,769.41

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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.