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Finding the Fourth Proportional to 219,502.80, 302,913.60 and 118,900.80

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Solution

The fourth proportional to 219,502.80, 302,913.60 and 118,900.80 is: 164,082.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,502.80 : 302,913.60 = 118,900.80 : x
  2. Step 2: Convert to fraction form
    219,502.80/302,913.60 = 118,900.80/x
  3. Step 3: Cross multiply
    219,502.80x = 302,913.60 × 118,900.80
  4. Step 4: Simplify right side
    219,502.80x = 36,016,669,370.88
  5. Step 5: Solve for x
    x = 36,016,669,370.88/219,502.80
  6. Step 6: Final answer
    x = 164,082.96

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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.