Home / 258,288.48-356,436.18-145,111.14

Finding the Fourth Proportional to 258,288.48, 356,436.18 and 145,111.14

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Solution

The fourth proportional to 258,288.48, 356,436.18 and 145,111.14 is: 200,252.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,288.48 : 356,436.18 = 145,111.14 : x
  2. Step 2: Convert to fraction form
    258,288.48/356,436.18 = 145,111.14/x
  3. Step 3: Cross multiply
    258,288.48x = 356,436.18 × 145,111.14
  4. Step 4: Simplify right side
    258,288.48x = 51,722,860,417.05
  5. Step 5: Solve for x
    x = 51,722,860,417.05/258,288.48
  6. Step 6: Final answer
    x = 200,252.29

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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.