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Finding the Fourth Proportional to 384,245.33, 530,266.99 and 212,162.83

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Solution

The fourth proportional to 384,245.33, 530,266.99 and 212,162.83 is: 292,789.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,245.33 : 530,266.99 = 212,162.83 : x
  2. Step 2: Convert to fraction form
    384,245.33/530,266.99 = 212,162.83/x
  3. Step 3: Cross multiply
    384,245.33x = 530,266.99 × 212,162.83
  4. Step 4: Simplify right side
    384,245.33x = 112,502,945,585.25
  5. Step 5: Solve for x
    x = 112,502,945,585.25/384,245.33
  6. Step 6: Final answer
    x = 292,789.36

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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.