Home / 205,628.20-308,903.10-197,231.40

Finding the Fourth Proportional to 205,628.20, 308,903.10 and 197,231.40

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Solution

The fourth proportional to 205,628.20, 308,903.10 and 197,231.40 is: 296,289.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,628.20 : 308,903.10 = 197,231.40 : x
  2. Step 2: Convert to fraction form
    205,628.20/308,903.10 = 197,231.40/x
  3. Step 3: Cross multiply
    205,628.20x = 308,903.10 × 197,231.40
  4. Step 4: Simplify right side
    205,628.20x = 60,925,390,877.34
  5. Step 5: Solve for x
    x = 60,925,390,877.34/205,628.20
  6. Step 6: Final answer
    x = 296,289.08

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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.