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Finding the Fourth Proportional to 201,307.68, 301,788.72 and 112,488.48

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Solution

The fourth proportional to 201,307.68, 301,788.72 and 112,488.48 is: 168,636.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,307.68 : 301,788.72 = 112,488.48 : x
  2. Step 2: Convert to fraction form
    201,307.68/301,788.72 = 112,488.48/x
  3. Step 3: Cross multiply
    201,307.68x = 301,788.72 × 112,488.48
  4. Step 4: Simplify right side
    201,307.68x = 33,947,754,393.95
  5. Step 5: Solve for x
    x = 33,947,754,393.95/201,307.68
  6. Step 6: Final answer
    x = 168,636.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.