Home / 217,795.72-300,547.36-122,306.44

Finding the Fourth Proportional to 217,795.72, 300,547.36 and 122,306.44

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Solution

The fourth proportional to 217,795.72, 300,547.36 and 122,306.44 is: 168,776.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,795.72 : 300,547.36 = 122,306.44 : x
  2. Step 2: Convert to fraction form
    217,795.72/300,547.36 = 122,306.44/x
  3. Step 3: Cross multiply
    217,795.72x = 300,547.36 × 122,306.44
  4. Step 4: Simplify right side
    217,795.72x = 36,758,877,653.00
  5. Step 5: Solve for x
    x = 36,758,877,653.00/217,795.72
  6. Step 6: Final answer
    x = 168,776.86

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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.