Home / 258,211.14-356,323.62-143,489.40

Finding the Fourth Proportional to 258,211.14, 356,323.62 and 143,489.40

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Solution

The fourth proportional to 258,211.14, 356,323.62 and 143,489.40 is: 198,011.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,211.14 : 356,323.62 = 143,489.40 : x
  2. Step 2: Convert to fraction form
    258,211.14/356,323.62 = 143,489.40/x
  3. Step 3: Cross multiply
    258,211.14x = 356,323.62 × 143,489.40
  4. Step 4: Simplify right side
    258,211.14x = 51,128,662,439.63
  5. Step 5: Solve for x
    x = 51,128,662,439.63/258,211.14
  6. Step 6: Final answer
    x = 198,011.06

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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.