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Finding the Fourth Proportional to 353,579.67, 530,288.51 and 100,855.35

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Solution

The fourth proportional to 353,579.67, 530,288.51 and 100,855.35 is: 151,259.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,579.67 : 530,288.51 = 100,855.35 : x
  2. Step 2: Convert to fraction form
    353,579.67/530,288.51 = 100,855.35/x
  3. Step 3: Cross multiply
    353,579.67x = 530,288.51 × 100,855.35
  4. Step 4: Simplify right side
    353,579.67x = 53,482,432,772.75
  5. Step 5: Solve for x
    x = 53,482,432,772.75/353,579.67
  6. Step 6: Final answer
    x = 151,259.92

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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.