Home / 389,230.18-583,493.91-139,853.86

Finding the Fourth Proportional to 389,230.18, 583,493.91 and 139,853.86

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Solution

The fourth proportional to 389,230.18, 583,493.91 and 139,853.86 is: 209,654.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,230.18 : 583,493.91 = 139,853.86 : x
  2. Step 2: Convert to fraction form
    389,230.18/583,493.91 = 139,853.86/x
  3. Step 3: Cross multiply
    389,230.18x = 583,493.91 × 139,853.86
  4. Step 4: Simplify right side
    389,230.18x = 81,603,875,599.99
  5. Step 5: Solve for x
    x = 81,603,875,599.99/389,230.18
  6. Step 6: Final answer
    x = 209,654.54

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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.