Home / 449,351.12-620,092.68-248,142.80

Finding the Fourth Proportional to 449,351.12, 620,092.68 and 248,142.80

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Solution

The fourth proportional to 449,351.12, 620,092.68 and 248,142.80 is: 342,430.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,351.12 : 620,092.68 = 248,142.80 : x
  2. Step 2: Convert to fraction form
    449,351.12/620,092.68 = 248,142.80/x
  3. Step 3: Cross multiply
    449,351.12x = 620,092.68 × 248,142.80
  4. Step 4: Simplify right side
    449,351.12x = 153,871,533,874.70
  5. Step 5: Solve for x
    x = 153,871,533,874.70/449,351.12
  6. Step 6: Final answer
    x = 342,430.51

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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.