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Finding the Fourth Proportional to 276,848.60, 388,637.80 and 276,848.60

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Solution

The fourth proportional to 276,848.60, 388,637.80 and 276,848.60 is: 388,637.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,848.60 : 388,637.80 = 276,848.60 : x
  2. Step 2: Convert to fraction form
    276,848.60/388,637.80 = 276,848.60/x
  3. Step 3: Cross multiply
    276,848.60x = 388,637.80 × 276,848.60
  4. Step 4: Simplify right side
    276,848.60x = 107,593,830,837.08
  5. Step 5: Solve for x
    x = 107,593,830,837.08/276,848.60
  6. Step 6: Final answer
    x = 388,637.80

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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.