Home / 220,709.23-304,557.66-123,890.91

Finding the Fourth Proportional to 220,709.23, 304,557.66 and 123,890.91

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Solution

The fourth proportional to 220,709.23, 304,557.66 and 123,890.91 is: 170,957.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,709.23 : 304,557.66 = 123,890.91 : x
  2. Step 2: Convert to fraction form
    220,709.23/304,557.66 = 123,890.91/x
  3. Step 3: Cross multiply
    220,709.23x = 304,557.66 × 123,890.91
  4. Step 4: Simplify right side
    220,709.23x = 37,731,925,644.87
  5. Step 5: Solve for x
    x = 37,731,925,644.87/220,709.23
  6. Step 6: Final answer
    x = 170,957.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.