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Finding the Fourth Proportional to 372,453.67, 513,997.73 and 211,315.51

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Solution

The fourth proportional to 372,453.67, 513,997.73 and 211,315.51 is: 291,622.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,453.67 : 513,997.73 = 211,315.51 : x
  2. Step 2: Convert to fraction form
    372,453.67/513,997.73 = 211,315.51/x
  3. Step 3: Cross multiply
    372,453.67x = 513,997.73 × 211,315.51
  4. Step 4: Simplify right side
    372,453.67x = 108,615,692,453.79
  5. Step 5: Solve for x
    x = 108,615,692,453.79/372,453.67
  6. Step 6: Final answer
    x = 291,622.02

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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.