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Finding the Fourth Proportional to 219,212.80, 302,513.56 and 118,610.80

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Solution

The fourth proportional to 219,212.80, 302,513.56 and 118,610.80 is: 163,682.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,212.80 : 302,513.56 = 118,610.80 : x
  2. Step 2: Convert to fraction form
    219,212.80/302,513.56 = 118,610.80/x
  3. Step 3: Cross multiply
    219,212.80x = 302,513.56 × 118,610.80
  4. Step 4: Simplify right side
    219,212.80x = 35,881,375,362.45
  5. Step 5: Solve for x
    x = 35,881,375,362.45/219,212.80
  6. Step 6: Final answer
    x = 163,682.85

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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.