Home / 219,016.60-302,242.35-122,219.43

Finding the Fourth Proportional to 219,016.60, 302,242.35 and 122,219.43

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Solution

The fourth proportional to 219,016.60, 302,242.35 and 122,219.43 is: 168,662.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,016.60 : 302,242.35 = 122,219.43 : x
  2. Step 2: Convert to fraction form
    219,016.60/302,242.35 = 122,219.43/x
  3. Step 3: Cross multiply
    219,016.60x = 302,242.35 × 122,219.43
  4. Step 4: Simplify right side
    219,016.60x = 36,939,886,973.19
  5. Step 5: Solve for x
    x = 36,939,886,973.19/219,016.60
  6. Step 6: Final answer
    x = 168,662.50

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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.