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Finding the Fourth Proportional to 219,275.44, 302,608.80 and 123,785.44

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Solution

The fourth proportional to 219,275.44, 302,608.80 and 123,785.44 is: 170,828.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,275.44 : 302,608.80 = 123,785.44 : x
  2. Step 2: Convert to fraction form
    219,275.44/302,608.80 = 123,785.44/x
  3. Step 3: Cross multiply
    219,275.44x = 302,608.80 × 123,785.44
  4. Step 4: Simplify right side
    219,275.44x = 37,458,563,455.87
  5. Step 5: Solve for x
    x = 37,458,563,455.87/219,275.44
  6. Step 6: Final answer
    x = 170,828.81

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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.