Home / 258,289.54-356,446.14-142,001.58

Finding the Fourth Proportional to 258,289.54, 356,446.14 and 142,001.58

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Solution

The fourth proportional to 258,289.54, 356,446.14 and 142,001.58 is: 195,965.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,289.54 : 356,446.14 = 142,001.58 : x
  2. Step 2: Convert to fraction form
    258,289.54/356,446.14 = 142,001.58/x
  3. Step 3: Cross multiply
    258,289.54x = 356,446.14 × 142,001.58
  4. Step 4: Simplify right side
    258,289.54x = 50,615,915,064.90
  5. Step 5: Solve for x
    x = 50,615,915,064.90/258,289.54
  6. Step 6: Final answer
    x = 195,965.80

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1.5x scale

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.