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Finding the Fourth Proportional to 242,709.60, 364,064.40 and 158,728.80

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Solution

The fourth proportional to 242,709.60, 364,064.40 and 158,728.80 is: 238,093.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,709.60 : 364,064.40 = 158,728.80 : x
  2. Step 2: Convert to fraction form
    242,709.60/364,064.40 = 158,728.80/x
  3. Step 3: Cross multiply
    242,709.60x = 364,064.40 × 158,728.80
  4. Step 4: Simplify right side
    242,709.60x = 57,787,505,334.72
  5. Step 5: Solve for x
    x = 57,787,505,334.72/242,709.60
  6. Step 6: Final answer
    x = 238,093.20

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1.5x scale

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.