Home / 218,116.96-301,012.08-122,653.60

Finding the Fourth Proportional to 218,116.96, 301,012.08 and 122,653.60

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Solution

The fourth proportional to 218,116.96, 301,012.08 and 122,653.60 is: 169,267.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,116.96 : 301,012.08 = 122,653.60 : x
  2. Step 2: Convert to fraction form
    218,116.96/301,012.08 = 122,653.60/x
  3. Step 3: Cross multiply
    218,116.96x = 301,012.08 × 122,653.60
  4. Step 4: Simplify right side
    218,116.96x = 36,920,215,255.49
  5. Step 5: Solve for x
    x = 36,920,215,255.49/218,116.96
  6. Step 6: Final answer
    x = 169,267.97

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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.