Home / 202,217.48-279,059.29-111,579.08

Finding the Fourth Proportional to 202,217.48, 279,059.29 and 111,579.08

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Solution

The fourth proportional to 202,217.48, 279,059.29 and 111,579.08 is: 153,978.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,217.48 : 279,059.29 = 111,579.08 : x
  2. Step 2: Convert to fraction form
    202,217.48/279,059.29 = 111,579.08/x
  3. Step 3: Cross multiply
    202,217.48x = 279,059.29 × 111,579.08
  4. Step 4: Simplify right side
    202,217.48x = 31,137,178,843.65
  5. Step 5: Solve for x
    x = 31,137,178,843.65/202,217.48
  6. Step 6: Final answer
    x = 153,978.67

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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.