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Finding the Fourth Proportional to 218,940.52, 302,138.37 and 118,338.52

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Solution

The fourth proportional to 218,940.52, 302,138.37 and 118,338.52 is: 163,307.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,940.52 : 302,138.37 = 118,338.52 : x
  2. Step 2: Convert to fraction form
    218,940.52/302,138.37 = 118,338.52/x
  3. Step 3: Cross multiply
    218,940.52x = 302,138.37 × 118,338.52
  4. Step 4: Simplify right side
    218,940.52x = 35,754,607,541.01
  5. Step 5: Solve for x
    x = 35,754,607,541.01/218,940.52
  6. Step 6: Final answer
    x = 163,307.40

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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.