Home / 255,619.95-352,781.78-153,678.62

Finding the Fourth Proportional to 255,619.95, 352,781.78 and 153,678.62

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Solution

The fourth proportional to 255,619.95, 352,781.78 and 153,678.62 is: 212,092.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,619.95 : 352,781.78 = 153,678.62 : x
  2. Step 2: Convert to fraction form
    255,619.95/352,781.78 = 153,678.62/x
  3. Step 3: Cross multiply
    255,619.95x = 352,781.78 × 153,678.62
  4. Step 4: Simplify right side
    255,619.95x = 54,215,014,579.24
  5. Step 5: Solve for x
    x = 54,215,014,579.24/255,619.95
  6. Step 6: Final answer
    x = 212,092.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.