Home / 259,908.56-390,018.36-238,757.84

Finding the Fourth Proportional to 259,908.56, 390,018.36 and 238,757.84

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Solution

The fourth proportional to 259,908.56, 390,018.36 and 238,757.84 is: 358,279.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,908.56 : 390,018.36 = 238,757.84 : x
  2. Step 2: Convert to fraction form
    259,908.56/390,018.36 = 238,757.84/x
  3. Step 3: Cross multiply
    259,908.56x = 390,018.36 × 238,757.84
  4. Step 4: Simplify right side
    259,908.56x = 93,119,941,193.94
  5. Step 5: Solve for x
    x = 93,119,941,193.94/259,908.56
  6. Step 6: Final answer
    x = 358,279.62

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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.