Home / 389,909.07-584,613.27-162,362.21

Finding the Fourth Proportional to 389,909.07, 584,613.27 and 162,362.21

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Solution

The fourth proportional to 389,909.07, 584,613.27 and 162,362.21 is: 243,439.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,909.07 : 584,613.27 = 162,362.21 : x
  2. Step 2: Convert to fraction form
    389,909.07/584,613.27 = 162,362.21/x
  3. Step 3: Cross multiply
    389,909.07x = 584,613.27 × 162,362.21
  4. Step 4: Simplify right side
    389,909.07x = 94,919,099,589.46
  5. Step 5: Solve for x
    x = 94,919,099,589.46/389,909.07
  6. Step 6: Final answer
    x = 243,439.07

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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.