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Finding the Fourth Proportional to 219,419.70, 302,797.45 and 118,817.70

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Solution

The fourth proportional to 219,419.70, 302,797.45 and 118,817.70 is: 163,967.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,419.70 : 302,797.45 = 118,817.70 : x
  2. Step 2: Convert to fraction form
    219,419.70/302,797.45 = 118,817.70/x
  3. Step 3: Cross multiply
    219,419.70x = 302,797.45 × 118,817.70
  4. Step 4: Simplify right side
    219,419.70x = 35,977,696,277.82
  5. Step 5: Solve for x
    x = 35,977,696,277.82/219,419.70
  6. Step 6: Final answer
    x = 163,967.48

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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.