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Finding the Fourth Proportional to 351,482.22, 485,045.73 and 190,337.45

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Solution

The fourth proportional to 351,482.22, 485,045.73 and 190,337.45 is: 262,665.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,482.22 : 485,045.73 = 190,337.45 : x
  2. Step 2: Convert to fraction form
    351,482.22/485,045.73 = 190,337.45/x
  3. Step 3: Cross multiply
    351,482.22x = 485,045.73 × 190,337.45
  4. Step 4: Simplify right side
    351,482.22x = 92,322,367,381.59
  5. Step 5: Solve for x
    x = 92,322,367,381.59/351,482.22
  6. Step 6: Final answer
    x = 262,665.83

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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.