Home / 221,004.65-330,943.73-145,895.51

Finding the Fourth Proportional to 221,004.65, 330,943.73 and 145,895.51

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Solution

The fourth proportional to 221,004.65, 330,943.73 and 145,895.51 is: 218,471.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,004.65 : 330,943.73 = 145,895.51 : x
  2. Step 2: Convert to fraction form
    221,004.65/330,943.73 = 145,895.51/x
  3. Step 3: Cross multiply
    221,004.65x = 330,943.73 × 145,895.51
  4. Step 4: Simplify right side
    221,004.65x = 48,283,204,367.53
  5. Step 5: Solve for x
    x = 48,283,204,367.53/221,004.65
  6. Step 6: Final answer
    x = 218,471.44

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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.