Home / 389,606.82-584,468.65-136,842.75

Finding the Fourth Proportional to 389,606.82, 584,468.65 and 136,842.75

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Solution

The fourth proportional to 389,606.82, 584,468.65 and 136,842.75 is: 205,284.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,606.82 : 584,468.65 = 136,842.75 : x
  2. Step 2: Convert to fraction form
    389,606.82/584,468.65 = 136,842.75/x
  3. Step 3: Cross multiply
    389,606.82x = 584,468.65 × 136,842.75
  4. Step 4: Simplify right side
    389,606.82x = 79,980,297,910.71
  5. Step 5: Solve for x
    x = 79,980,297,910.71/389,606.82
  6. Step 6: Final answer
    x = 205,284.65

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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.