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Finding the Fourth Proportional to 242,708.40, 364,062.60 and 136,420.20

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Solution

The fourth proportional to 242,708.40, 364,062.60 and 136,420.20 is: 204,630.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,708.40 : 364,062.60 = 136,420.20 : x
  2. Step 2: Convert to fraction form
    242,708.40/364,062.60 = 136,420.20/x
  3. Step 3: Cross multiply
    242,708.40x = 364,062.60 × 136,420.20
  4. Step 4: Simplify right side
    242,708.40x = 49,665,492,704.52
  5. Step 5: Solve for x
    x = 49,665,492,704.52/242,708.40
  6. Step 6: Final answer
    x = 204,630.30

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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.