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Finding the Fourth Proportional to 201,636.95, 278,248.37 and 110,975.27

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Solution

The fourth proportional to 201,636.95, 278,248.37 and 110,975.27 is: 153,140.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,636.95 : 278,248.37 = 110,975.27 : x
  2. Step 2: Convert to fraction form
    201,636.95/278,248.37 = 110,975.27/x
  3. Step 3: Cross multiply
    201,636.95x = 278,248.37 × 110,975.27
  4. Step 4: Simplify right side
    201,636.95x = 30,878,686,041.69
  5. Step 5: Solve for x
    x = 30,878,686,041.69/201,636.95
  6. Step 6: Final answer
    x = 153,140.02

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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.