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Finding the Fourth Proportional to 374,662.80, 561,994.20 and 331,360.20

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Solution

The fourth proportional to 374,662.80, 561,994.20 and 331,360.20 is: 497,040.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,662.80 : 561,994.20 = 331,360.20 : x
  2. Step 2: Convert to fraction form
    374,662.80/561,994.20 = 331,360.20/x
  3. Step 3: Cross multiply
    374,662.80x = 561,994.20 × 331,360.20
  4. Step 4: Simplify right side
    374,662.80x = 186,222,510,510.84
  5. Step 5: Solve for x
    x = 186,222,510,510.84/374,662.80
  6. Step 6: Final answer
    x = 497,040.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.