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Finding the Fourth Proportional to 307,956.60, 461,278.80 and 248,907.60

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Solution

The fourth proportional to 307,956.60, 461,278.80 and 248,907.60 is: 372,831.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,956.60 : 461,278.80 = 248,907.60 : x
  2. Step 2: Convert to fraction form
    307,956.60/461,278.80 = 248,907.60/x
  3. Step 3: Cross multiply
    307,956.60x = 461,278.80 × 248,907.60
  4. Step 4: Simplify right side
    307,956.60x = 114,815,799,038.88
  5. Step 5: Solve for x
    x = 114,815,799,038.88/307,956.60
  6. Step 6: Final answer
    x = 372,831.10

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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.