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Finding the Fourth Proportional to 219,357.56, 302,711.10 and 123,858.60

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Solution

The fourth proportional to 219,357.56, 302,711.10 and 123,858.60 is: 170,923.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,357.56 : 302,711.10 = 123,858.60 : x
  2. Step 2: Convert to fraction form
    219,357.56/302,711.10 = 123,858.60/x
  3. Step 3: Cross multiply
    219,357.56x = 302,711.10 × 123,858.60
  4. Step 4: Simplify right side
    219,357.56x = 37,493,373,050.46
  5. Step 5: Solve for x
    x = 37,493,373,050.46/219,357.56
  6. Step 6: Final answer
    x = 170,923.55

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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.