Home / 253,923.16-380,896.88-209,467.48

Finding the Fourth Proportional to 253,923.16, 380,896.88 and 209,467.48

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Solution

The fourth proportional to 253,923.16, 380,896.88 and 209,467.48 is: 314,211.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,923.16 : 380,896.88 = 209,467.48 : x
  2. Step 2: Convert to fraction form
    253,923.16/380,896.88 = 209,467.48/x
  3. Step 3: Cross multiply
    253,923.16x = 380,896.88 × 209,467.48
  4. Step 4: Simplify right side
    253,923.16x = 79,785,509,593.46
  5. Step 5: Solve for x
    x = 79,785,509,593.46/253,923.16
  6. Step 6: Final answer
    x = 314,211.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.