Home / 322,919.28-484,501.92-145,385.46

Finding the Fourth Proportional to 322,919.28, 484,501.92 and 145,385.46

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Solution

The fourth proportional to 322,919.28, 484,501.92 and 145,385.46 is: 218,133.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,919.28 : 484,501.92 = 145,385.46 : x
  2. Step 2: Convert to fraction form
    322,919.28/484,501.92 = 145,385.46/x
  3. Step 3: Cross multiply
    322,919.28x = 484,501.92 × 145,385.46
  4. Step 4: Simplify right side
    322,919.28x = 70,439,534,510.08
  5. Step 5: Solve for x
    x = 70,439,534,510.08/322,919.28
  6. Step 6: Final answer
    x = 218,133.57

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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.