Home / 258,160.51-356,300-203,587.57

Finding the Fourth Proportional to 258,160.51, 356,300 and 203,587.57

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Solution

The fourth proportional to 258,160.51, 356,300 and 203,587.57 is: 280,981.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,160.51 : 356,300 = 203,587.57 : x
  2. Step 2: Convert to fraction form
    258,160.51/356,300 = 203,587.57/x
  3. Step 3: Cross multiply
    258,160.51x = 356,300 × 203,587.57
  4. Step 4: Simplify right side
    258,160.51x = 72,538,251,191
  5. Step 5: Solve for x
    x = 72,538,251,191/258,160.51
  6. Step 6: Final answer
    x = 280,981.21

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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.