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Finding the Fourth Proportional to 303,313.20, 454,969.80 and 203,780.40

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Solution

The fourth proportional to 303,313.20, 454,969.80 and 203,780.40 is: 305,670.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,313.20 : 454,969.80 = 203,780.40 : x
  2. Step 2: Convert to fraction form
    303,313.20/454,969.80 = 203,780.40/x
  3. Step 3: Cross multiply
    303,313.20x = 454,969.80 × 203,780.40
  4. Step 4: Simplify right side
    303,313.20x = 92,713,927,831.92
  5. Step 5: Solve for x
    x = 92,713,927,831.92/303,313.20
  6. Step 6: Final answer
    x = 305,670.60

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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.