Home / 372,142.36-513,544.44-211,011.76

Finding the Fourth Proportional to 372,142.36, 513,544.44 and 211,011.76

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Solution

The fourth proportional to 372,142.36, 513,544.44 and 211,011.76 is: 291,189.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,142.36 : 513,544.44 = 211,011.76 : x
  2. Step 2: Convert to fraction form
    372,142.36/513,544.44 = 211,011.76/x
  3. Step 3: Cross multiply
    372,142.36x = 513,544.44 × 211,011.76
  4. Step 4: Simplify right side
    372,142.36x = 108,363,914,838.75
  5. Step 5: Solve for x
    x = 108,363,914,838.75/372,142.36
  6. Step 6: Final answer
    x = 291,189.41

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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.