Home / 255,365.05-382,781.48-142,880.35

Finding the Fourth Proportional to 255,365.05, 382,781.48 and 142,880.35

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Solution

The fourth proportional to 255,365.05, 382,781.48 and 142,880.35 is: 214,171.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,365.05 : 382,781.48 = 142,880.35 : x
  2. Step 2: Convert to fraction form
    255,365.05/382,781.48 = 142,880.35/x
  3. Step 3: Cross multiply
    255,365.05x = 382,781.48 × 142,880.35
  4. Step 4: Simplify right side
    255,365.05x = 54,691,949,207.61
  5. Step 5: Solve for x
    x = 54,691,949,207.61/255,365.05
  6. Step 6: Final answer
    x = 214,171.63

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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.