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Finding the Fourth Proportional to 449,494.24, 620,300.16 and 248,290.24

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Solution

The fourth proportional to 449,494.24, 620,300.16 and 248,290.24 is: 342,639.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,494.24 : 620,300.16 = 248,290.24 : x
  2. Step 2: Convert to fraction form
    449,494.24/620,300.16 = 248,290.24/x
  3. Step 3: Cross multiply
    449,494.24x = 620,300.16 × 248,290.24
  4. Step 4: Simplify right side
    449,494.24x = 154,014,475,598.44
  5. Step 5: Solve for x
    x = 154,014,475,598.44/449,494.24
  6. Step 6: Final answer
    x = 342,639.49

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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.