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Finding the Fourth Proportional to 201,696.63, 278,417.48 and 158,563.59

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Solution

The fourth proportional to 201,696.63, 278,417.48 and 158,563.59 is: 218,877.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,696.63 : 278,417.48 = 158,563.59 : x
  2. Step 2: Convert to fraction form
    201,696.63/278,417.48 = 158,563.59/x
  3. Step 3: Cross multiply
    201,696.63x = 278,417.48 × 158,563.59
  4. Step 4: Simplify right side
    201,696.63x = 44,146,875,147.55
  5. Step 5: Solve for x
    x = 44,146,875,147.55/201,696.63
  6. Step 6: Final answer
    x = 218,877.60

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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.