Home / 252,389.32-378,502.06-83,864.40

Finding the Fourth Proportional to 252,389.32, 378,502.06 and 83,864.40

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Solution

The fourth proportional to 252,389.32, 378,502.06 and 83,864.40 is: 125,769.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,389.32 : 378,502.06 = 83,864.40 : x
  2. Step 2: Convert to fraction form
    252,389.32/378,502.06 = 83,864.40/x
  3. Step 3: Cross multiply
    252,389.32x = 378,502.06 × 83,864.40
  4. Step 4: Simplify right side
    252,389.32x = 31,742,848,160.66
  5. Step 5: Solve for x
    x = 31,742,848,160.66/252,389.32
  6. Step 6: Final answer
    x = 125,769.38

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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.