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Finding the Fourth Proportional to 258,001.93, 356,046.16 and 143,287.97

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Solution

The fourth proportional to 258,001.93, 356,046.16 and 143,287.97 is: 197,739.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,001.93 : 356,046.16 = 143,287.97 : x
  2. Step 2: Convert to fraction form
    258,001.93/356,046.16 = 143,287.97/x
  3. Step 3: Cross multiply
    258,001.93x = 356,046.16 × 143,287.97
  4. Step 4: Simplify right side
    258,001.93x = 51,017,132,024.59
  5. Step 5: Solve for x
    x = 51,017,132,024.59/258,001.93
  6. Step 6: Final answer
    x = 197,739.34

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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.