Home / 372,161.69-513,572.15-211,031.45

Finding the Fourth Proportional to 372,161.69, 513,572.15 and 211,031.45

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Solution

The fourth proportional to 372,161.69, 513,572.15 and 211,031.45 is: 291,217.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,161.69 : 513,572.15 = 211,031.45 : x
  2. Step 2: Convert to fraction form
    372,161.69/513,572.15 = 211,031.45/x
  3. Step 3: Cross multiply
    372,161.69x = 513,572.15 × 211,031.45
  4. Step 4: Simplify right side
    372,161.69x = 108,379,873,453.84
  5. Step 5: Solve for x
    x = 108,379,873,453.84/372,161.69
  6. Step 6: Final answer
    x = 291,217.17

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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.