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Finding the Fourth Proportional to 348,855.20, 522,505.20 and 286,647.20

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Solution

The fourth proportional to 348,855.20, 522,505.20 and 286,647.20 is: 429,331.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,855.20 : 522,505.20 = 286,647.20 : x
  2. Step 2: Convert to fraction form
    348,855.20/522,505.20 = 286,647.20/x
  3. Step 3: Cross multiply
    348,855.20x = 522,505.20 × 286,647.20
  4. Step 4: Simplify right side
    348,855.20x = 149,774,652,565.44
  5. Step 5: Solve for x
    x = 149,774,652,565.44/348,855.20
  6. Step 6: Final answer
    x = 429,331.86

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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.