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Finding the Fourth Proportional to 201,851.65, 278,555.54 and 109,970.48

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Solution

The fourth proportional to 201,851.65, 278,555.54 and 109,970.48 is: 151,759.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,851.65 : 278,555.54 = 109,970.48 : x
  2. Step 2: Convert to fraction form
    201,851.65/278,555.54 = 109,970.48/x
  3. Step 3: Cross multiply
    201,851.65x = 278,555.54 × 109,970.48
  4. Step 4: Simplify right side
    201,851.65x = 30,632,886,440.46
  5. Step 5: Solve for x
    x = 30,632,886,440.46/201,851.65
  6. Step 6: Final answer
    x = 151,759.41

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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.