Home / 389,623.40-584,435.10-164,909.15

Finding the Fourth Proportional to 389,623.40, 584,435.10 and 164,909.15

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Solution

The fourth proportional to 389,623.40, 584,435.10 and 164,909.15 is: 247,363.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,623.40 : 584,435.10 = 164,909.15 : x
  2. Step 2: Convert to fraction form
    389,623.40/584,435.10 = 164,909.15/x
  3. Step 3: Cross multiply
    389,623.40x = 584,435.10 × 164,909.15
  4. Step 4: Simplify right side
    389,623.40x = 96,378,695,571.17
  5. Step 5: Solve for x
    x = 96,378,695,571.17/389,623.40
  6. Step 6: Final answer
    x = 247,363.73

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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.