Home / 389,365.14-584,119.80-123,192.66

Finding the Fourth Proportional to 389,365.14, 584,119.80 and 123,192.66

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Solution

The fourth proportional to 389,365.14, 584,119.80 and 123,192.66 is: 184,811.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,365.14 : 584,119.80 = 123,192.66 : x
  2. Step 2: Convert to fraction form
    389,365.14/584,119.80 = 123,192.66/x
  3. Step 3: Cross multiply
    389,365.14x = 584,119.80 × 123,192.66
  4. Step 4: Simplify right side
    389,365.14x = 71,959,271,920.67
  5. Step 5: Solve for x
    x = 71,959,271,920.67/389,365.14
  6. Step 6: Final answer
    x = 184,811.80

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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.