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Finding the Fourth Proportional to 355,286.80, 532,055.40 and 168,079.60

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Solution

The fourth proportional to 355,286.80, 532,055.40 and 168,079.60 is: 251,705.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,286.80 : 532,055.40 = 168,079.60 : x
  2. Step 2: Convert to fraction form
    355,286.80/532,055.40 = 168,079.60/x
  3. Step 3: Cross multiply
    355,286.80x = 532,055.40 × 168,079.60
  4. Step 4: Simplify right side
    355,286.80x = 89,427,658,809.84
  5. Step 5: Solve for x
    x = 89,427,658,809.84/355,286.80
  6. Step 6: Final answer
    x = 251,705.55

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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.