Home / 389,523.67-584,350.10-136,738.60

Finding the Fourth Proportional to 389,523.67, 584,350.10 and 136,738.60

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Solution

The fourth proportional to 389,523.67, 584,350.10 and 136,738.60 is: 205,130.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,523.67 : 584,350.10 = 136,738.60 : x
  2. Step 2: Convert to fraction form
    389,523.67/584,350.10 = 136,738.60/x
  3. Step 3: Cross multiply
    389,523.67x = 584,350.10 × 136,738.60
  4. Step 4: Simplify right side
    389,523.67x = 79,903,214,583.86
  5. Step 5: Solve for x
    x = 79,903,214,583.86/389,523.67
  6. Step 6: Final answer
    x = 205,130.58

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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.