Home / 389,183.12-537,072.48-210,335.12

Finding the Fourth Proportional to 389,183.12, 537,072.48 and 210,335.12

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Solution

The fourth proportional to 389,183.12, 537,072.48 and 210,335.12 is: 290,262.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,183.12 : 537,072.48 = 210,335.12 : x
  2. Step 2: Convert to fraction form
    389,183.12/537,072.48 = 210,335.12/x
  3. Step 3: Cross multiply
    389,183.12x = 537,072.48 × 210,335.12
  4. Step 4: Simplify right side
    389,183.12x = 112,965,204,529.50
  5. Step 5: Solve for x
    x = 112,965,204,529.50/389,183.12
  6. Step 6: Final answer
    x = 290,262.34

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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.