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Finding the Fourth Proportional to 445,051.62, 614,138.10 and 251,399.22

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Solution

The fourth proportional to 445,051.62, 614,138.10 and 251,399.22 is: 346,912.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,051.62 : 614,138.10 = 251,399.22 : x
  2. Step 2: Convert to fraction form
    445,051.62/614,138.10 = 251,399.22/x
  3. Step 3: Cross multiply
    445,051.62x = 614,138.10 × 251,399.22
  4. Step 4: Simplify right side
    445,051.62x = 154,393,839,312.28
  5. Step 5: Solve for x
    x = 154,393,839,312.28/445,051.62
  6. Step 6: Final answer
    x = 346,912.21

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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.