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Finding the Fourth Proportional to 202,205.73, 279,044.88 and 111,561.69

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Solution

The fourth proportional to 202,205.73, 279,044.88 and 111,561.69 is: 153,955.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,205.73 : 279,044.88 = 111,561.69 : x
  2. Step 2: Convert to fraction form
    202,205.73/279,044.88 = 111,561.69/x
  3. Step 3: Cross multiply
    202,205.73x = 279,044.88 × 111,561.69
  4. Step 4: Simplify right side
    202,205.73x = 31,130,718,398.65
  5. Step 5: Solve for x
    x = 31,130,718,398.65/202,205.73
  6. Step 6: Final answer
    x = 153,955.67

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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.