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Finding the Fourth Proportional to 276,837.60, 388,622.40 and 276,837.60

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Solution

The fourth proportional to 276,837.60, 388,622.40 and 276,837.60 is: 388,622.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,837.60 : 388,622.40 = 276,837.60 : x
  2. Step 2: Convert to fraction form
    276,837.60/388,622.40 = 276,837.60/x
  3. Step 3: Cross multiply
    276,837.60x = 388,622.40 × 276,837.60
  4. Step 4: Simplify right side
    276,837.60x = 107,585,292,522.24
  5. Step 5: Solve for x
    x = 107,585,292,522.24/276,837.60
  6. Step 6: Final answer
    x = 388,622.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.