Home / 205,715.24-308,370.44-120,217.58

Finding the Fourth Proportional to 205,715.24, 308,370.44 and 120,217.58

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Solution

The fourth proportional to 205,715.24, 308,370.44 and 120,217.58 is: 180,208.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,715.24 : 308,370.44 = 120,217.58 : x
  2. Step 2: Convert to fraction form
    205,715.24/308,370.44 = 120,217.58/x
  3. Step 3: Cross multiply
    205,715.24x = 308,370.44 × 120,217.58
  4. Step 4: Simplify right side
    205,715.24x = 37,071,549,690.00
  5. Step 5: Solve for x
    x = 37,071,549,690.00/205,715.24
  6. Step 6: Final answer
    x = 180,208.08

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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.