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Finding the Fourth Proportional to 449,430.51, 620,217.32 and 248,226.51

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Solution

The fourth proportional to 449,430.51, 620,217.32 and 248,226.51 is: 342,554.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,430.51 : 620,217.32 = 248,226.51 : x
  2. Step 2: Convert to fraction form
    449,430.51/620,217.32 = 248,226.51/x
  3. Step 3: Cross multiply
    449,430.51x = 620,217.32 × 248,226.51
  4. Step 4: Simplify right side
    449,430.51x = 153,954,379,544.02
  5. Step 5: Solve for x
    x = 153,954,379,544.02/449,430.51
  6. Step 6: Final answer
    x = 342,554.36

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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.