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Finding the Fourth Proportional to 219,673.86, 303,157.10 and 121,558.23

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Solution

The fourth proportional to 219,673.86, 303,157.10 and 121,558.23 is: 167,754.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,673.86 : 303,157.10 = 121,558.23 : x
  2. Step 2: Convert to fraction form
    219,673.86/303,157.10 = 121,558.23/x
  3. Step 3: Cross multiply
    219,673.86x = 303,157.10 × 121,558.23
  4. Step 4: Simplify right side
    219,673.86x = 36,851,240,487.93
  5. Step 5: Solve for x
    x = 36,851,240,487.93/219,673.86
  6. Step 6: Final answer
    x = 167,754.33

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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.