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Finding the Fourth Proportional to 371,997.72, 513,396.99 and 210,835.46

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Solution

The fourth proportional to 371,997.72, 513,396.99 and 210,835.46 is: 290,975.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,997.72 : 513,396.99 = 210,835.46 : x
  2. Step 2: Convert to fraction form
    371,997.72/513,396.99 = 210,835.46/x
  3. Step 3: Cross multiply
    371,997.72x = 513,396.99 × 210,835.46
  4. Step 4: Simplify right side
    371,997.72x = 108,242,291,832.76
  5. Step 5: Solve for x
    x = 108,242,291,832.76/371,997.72
  6. Step 6: Final answer
    x = 290,975.69

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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.