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Finding the Fourth Proportional to 228,836.40, 343,254.60 and 154,186.80

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Solution

The fourth proportional to 228,836.40, 343,254.60 and 154,186.80 is: 231,280.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,836.40 : 343,254.60 = 154,186.80 : x
  2. Step 2: Convert to fraction form
    228,836.40/343,254.60 = 154,186.80/x
  3. Step 3: Cross multiply
    228,836.40x = 343,254.60 × 154,186.80
  4. Step 4: Simplify right side
    228,836.40x = 52,925,328,359.28
  5. Step 5: Solve for x
    x = 52,925,328,359.28/228,836.40
  6. Step 6: Final answer
    x = 231,280.20

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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.