Home / 389,137.17-583,723.32-119,245.89

Finding the Fourth Proportional to 389,137.17, 583,723.32 and 119,245.89

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Solution

The fourth proportional to 389,137.17, 583,723.32 and 119,245.89 is: 178,874.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,137.17 : 583,723.32 = 119,245.89 : x
  2. Step 2: Convert to fraction form
    389,137.17/583,723.32 = 119,245.89/x
  3. Step 3: Cross multiply
    389,137.17x = 583,723.32 × 119,245.89
  4. Step 4: Simplify right side
    389,137.17x = 69,606,606,807.15
  5. Step 5: Solve for x
    x = 69,606,606,807.15/389,137.17
  6. Step 6: Final answer
    x = 178,874.22

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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.