Home / 274,467.45-378,781.76-153,606.22

Finding the Fourth Proportional to 274,467.45, 378,781.76 and 153,606.22

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Solution

The fourth proportional to 274,467.45, 378,781.76 and 153,606.22 is: 211,985.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,467.45 : 378,781.76 = 153,606.22 : x
  2. Step 2: Convert to fraction form
    274,467.45/378,781.76 = 153,606.22/x
  3. Step 3: Cross multiply
    274,467.45x = 378,781.76 × 153,606.22
  4. Step 4: Simplify right side
    274,467.45x = 58,183,234,358.55
  5. Step 5: Solve for x
    x = 58,183,234,358.55/274,467.45
  6. Step 6: Final answer
    x = 211,985.92

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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.