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Finding the Fourth Proportional to 219,221.64, 302,526.80 and 118,619.64

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Solution

The fourth proportional to 219,221.64, 302,526.80 and 118,619.64 is: 163,695.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,221.64 : 302,526.80 = 118,619.64 : x
  2. Step 2: Convert to fraction form
    219,221.64/302,526.80 = 118,619.64/x
  3. Step 3: Cross multiply
    219,221.64x = 302,526.80 × 118,619.64
  4. Step 4: Simplify right side
    219,221.64x = 35,885,619,958.08
  5. Step 5: Solve for x
    x = 35,885,619,958.08/219,221.64
  6. Step 6: Final answer
    x = 163,695.61

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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.