Home / 222,032.40-330,937.94-209,421.63

Finding the Fourth Proportional to 222,032.40, 330,937.94 and 209,421.63

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Solution

The fourth proportional to 222,032.40, 330,937.94 and 209,421.63 is: 312,141.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,032.40 : 330,937.94 = 209,421.63 : x
  2. Step 2: Convert to fraction form
    222,032.40/330,937.94 = 209,421.63/x
  3. Step 3: Cross multiply
    222,032.40x = 330,937.94 × 209,421.63
  4. Step 4: Simplify right side
    222,032.40x = 69,305,561,776.53
  5. Step 5: Solve for x
    x = 69,305,561,776.53/222,032.40
  6. Step 6: Final answer
    x = 312,141.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.