Home / 258,021.66-356,058.07-143,307.64

Finding the Fourth Proportional to 258,021.66, 356,058.07 and 143,307.64

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Solution

The fourth proportional to 258,021.66, 356,058.07 and 143,307.64 is: 197,757.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,021.66 : 356,058.07 = 143,307.64 : x
  2. Step 2: Convert to fraction form
    258,021.66/356,058.07 = 143,307.64/x
  3. Step 3: Cross multiply
    258,021.66x = 356,058.07 × 143,307.64
  4. Step 4: Simplify right side
    258,021.66x = 51,025,841,714.65
  5. Step 5: Solve for x
    x = 51,025,841,714.65/258,021.66
  6. Step 6: Final answer
    x = 197,757.98

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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.