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Finding the Fourth Proportional to 304,485.20, 456,756.60 and 82,869.20

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Solution

The fourth proportional to 304,485.20, 456,756.60 and 82,869.20 is: 124,311.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,485.20 : 456,756.60 = 82,869.20 : x
  2. Step 2: Convert to fraction form
    304,485.20/456,756.60 = 82,869.20/x
  3. Step 3: Cross multiply
    304,485.20x = 456,756.60 × 82,869.20
  4. Step 4: Simplify right side
    304,485.20x = 37,851,054,036.72
  5. Step 5: Solve for x
    x = 37,851,054,036.72/304,485.20
  6. Step 6: Final answer
    x = 124,311.64

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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.