Home / 206,812.15-310,218.23-135,953.35

Finding the Fourth Proportional to 206,812.15, 310,218.23 and 135,953.35

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Solution

The fourth proportional to 206,812.15, 310,218.23 and 135,953.35 is: 203,930.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,812.15 : 310,218.23 = 135,953.35 : x
  2. Step 2: Convert to fraction form
    206,812.15/310,218.23 = 135,953.35/x
  3. Step 3: Cross multiply
    206,812.15x = 310,218.23 × 135,953.35
  4. Step 4: Simplify right side
    206,812.15x = 42,175,207,599.57
  5. Step 5: Solve for x
    x = 42,175,207,599.57/206,812.15
  6. Step 6: Final answer
    x = 203,930.03

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1.5x scale

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.