Home / 238,019.90-357,038.37-80,249.72

Finding the Fourth Proportional to 238,019.90, 357,038.37 and 80,249.72

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Solution

The fourth proportional to 238,019.90, 357,038.37 and 80,249.72 is: 120,377.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,019.90 : 357,038.37 = 80,249.72 : x
  2. Step 2: Convert to fraction form
    238,019.90/357,038.37 = 80,249.72/x
  3. Step 3: Cross multiply
    238,019.90x = 357,038.37 × 80,249.72
  4. Step 4: Simplify right side
    238,019.90x = 28,652,227,436.56
  5. Step 5: Solve for x
    x = 28,652,227,436.56/238,019.90
  6. Step 6: Final answer
    x = 120,377.45

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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.