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Finding the Fourth Proportional to 382,994.21, 528,522.41 and 210,910.82

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Solution

The fourth proportional to 382,994.21, 528,522.41 and 210,910.82 is: 291,051.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,994.21 : 528,522.41 = 210,910.82 : x
  2. Step 2: Convert to fraction form
    382,994.21/528,522.41 = 210,910.82/x
  3. Step 3: Cross multiply
    382,994.21x = 528,522.41 × 210,910.82
  4. Step 4: Simplify right side
    382,994.21x = 111,471,094,881.48
  5. Step 5: Solve for x
    x = 111,471,094,881.48/382,994.21
  6. Step 6: Final answer
    x = 291,051.65

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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.