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Finding the Fourth Proportional to 353,579.42, 530,288.13 and 100,855.10

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Solution

The fourth proportional to 353,579.42, 530,288.13 and 100,855.10 is: 151,259.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,579.42 : 530,288.13 = 100,855.10 : x
  2. Step 2: Convert to fraction form
    353,579.42/530,288.13 = 100,855.10/x
  3. Step 3: Cross multiply
    353,579.42x = 530,288.13 × 100,855.10
  4. Step 4: Simplify right side
    353,579.42x = 53,482,262,379.96
  5. Step 5: Solve for x
    x = 53,482,262,379.96/353,579.42
  6. Step 6: Final answer
    x = 151,259.55

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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.