Home / 258,426.90-356,603.85-145,247.22

Finding the Fourth Proportional to 258,426.90, 356,603.85 and 145,247.22

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Solution

The fourth proportional to 258,426.90, 356,603.85 and 145,247.22 is: 200,426.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,426.90 : 356,603.85 = 145,247.22 : x
  2. Step 2: Convert to fraction form
    258,426.90/356,603.85 = 145,247.22/x
  3. Step 3: Cross multiply
    258,426.90x = 356,603.85 × 145,247.22
  4. Step 4: Simplify right side
    258,426.90x = 51,795,717,853.80
  5. Step 5: Solve for x
    x = 51,795,717,853.80/258,426.90
  6. Step 6: Final answer
    x = 200,426.96

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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.