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Finding the Fourth Proportional to 219,872.44, 303,430.74 and 124,377.40

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Solution

The fourth proportional to 219,872.44, 303,430.74 and 124,377.40 is: 171,644.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,872.44 : 303,430.74 = 124,377.40 : x
  2. Step 2: Convert to fraction form
    219,872.44/303,430.74 = 124,377.40/x
  3. Step 3: Cross multiply
    219,872.44x = 303,430.74 × 124,377.40
  4. Step 4: Simplify right side
    219,872.44x = 37,739,926,521.28
  5. Step 5: Solve for x
    x = 37,739,926,521.28/219,872.44
  6. Step 6: Final answer
    x = 171,644.64

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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.