Home / 258,389.32-356,545.20-149,512.36

Finding the Fourth Proportional to 258,389.32, 356,545.20 and 149,512.36

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Solution

The fourth proportional to 258,389.32, 356,545.20 and 149,512.36 is: 206,308.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,389.32 : 356,545.20 = 149,512.36 : x
  2. Step 2: Convert to fraction form
    258,389.32/356,545.20 = 149,512.36/x
  3. Step 3: Cross multiply
    258,389.32x = 356,545.20 × 149,512.36
  4. Step 4: Simplify right side
    258,389.32x = 53,307,914,298.67
  5. Step 5: Solve for x
    x = 53,307,914,298.67/258,389.32
  6. Step 6: Final answer
    x = 206,308.50

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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.