Home / 259,056.30-388,619.79-90,537.51

Finding the Fourth Proportional to 259,056.30, 388,619.79 and 90,537.51

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Solution

The fourth proportional to 259,056.30, 388,619.79 and 90,537.51 is: 135,818.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,056.30 : 388,619.79 = 90,537.51 : x
  2. Step 2: Convert to fraction form
    259,056.30/388,619.79 = 90,537.51/x
  3. Step 3: Cross multiply
    259,056.30x = 388,619.79 × 90,537.51
  4. Step 4: Simplify right side
    259,056.30x = 35,184,668,123.32
  5. Step 5: Solve for x
    x = 35,184,668,123.32/259,056.30
  6. Step 6: Final answer
    x = 135,818.62

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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.