Home / 389,836.38-537,974.15-210,988.38

Finding the Fourth Proportional to 389,836.38, 537,974.15 and 210,988.38

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Solution

The fourth proportional to 389,836.38, 537,974.15 and 210,988.38 is: 291,163.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,836.38 : 537,974.15 = 210,988.38 : x
  2. Step 2: Convert to fraction form
    389,836.38/537,974.15 = 210,988.38/x
  3. Step 3: Cross multiply
    389,836.38x = 537,974.15 × 210,988.38
  4. Step 4: Simplify right side
    389,836.38x = 113,506,293,335.44
  5. Step 5: Solve for x
    x = 113,506,293,335.44/389,836.38
  6. Step 6: Final answer
    x = 291,163.93

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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.