Home / 205,721.52-308,084.04-142,364.16

Finding the Fourth Proportional to 205,721.52, 308,084.04 and 142,364.16

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Solution

The fourth proportional to 205,721.52, 308,084.04 and 142,364.16 is: 213,201.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,721.52 : 308,084.04 = 142,364.16 : x
  2. Step 2: Convert to fraction form
    205,721.52/308,084.04 = 142,364.16/x
  3. Step 3: Cross multiply
    205,721.52x = 308,084.04 × 142,364.16
  4. Step 4: Simplify right side
    205,721.52x = 43,860,125,564.01
  5. Step 5: Solve for x
    x = 43,860,125,564.01/205,721.52
  6. Step 6: Final answer
    x = 213,201.45

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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.