Home / 258,211.90-356,322.95-143,497.68

Finding the Fourth Proportional to 258,211.90, 356,322.95 and 143,497.68

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Solution

The fourth proportional to 258,211.90, 356,322.95 and 143,497.68 is: 198,021.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,211.90 : 356,322.95 = 143,497.68 : x
  2. Step 2: Convert to fraction form
    258,211.90/356,322.95 = 143,497.68/x
  3. Step 3: Cross multiply
    258,211.90x = 356,322.95 × 143,497.68
  4. Step 4: Simplify right side
    258,211.90x = 51,131,514,156.65
  5. Step 5: Solve for x
    x = 51,131,514,156.65/258,211.90
  6. Step 6: Final answer
    x = 198,021.52

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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.