Home / 205,020.10-307,530.15-197,146.90

Finding the Fourth Proportional to 205,020.10, 307,530.15 and 197,146.90

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Solution

The fourth proportional to 205,020.10, 307,530.15 and 197,146.90 is: 295,720.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,020.10 : 307,530.15 = 197,146.90 : x
  2. Step 2: Convert to fraction form
    205,020.10/307,530.15 = 197,146.90/x
  3. Step 3: Cross multiply
    205,020.10x = 307,530.15 × 197,146.90
  4. Step 4: Simplify right side
    205,020.10x = 60,628,615,729.04
  5. Step 5: Solve for x
    x = 60,628,615,729.04/205,020.10
  6. Step 6: Final answer
    x = 295,720.35

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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.