Home / 217,578.24-300,257.28-122,085.36

Finding the Fourth Proportional to 217,578.24, 300,257.28 and 122,085.36

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Solution

The fourth proportional to 217,578.24, 300,257.28 and 122,085.36 is: 168,477.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,578.24 : 300,257.28 = 122,085.36 : x
  2. Step 2: Convert to fraction form
    217,578.24/300,257.28 = 122,085.36/x
  3. Step 3: Cross multiply
    217,578.24x = 300,257.28 × 122,085.36
  4. Step 4: Simplify right side
    217,578.24x = 36,657,018,121.42
  5. Step 5: Solve for x
    x = 36,657,018,121.42/217,578.24
  6. Step 6: Final answer
    x = 168,477.41

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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.