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Finding the Fourth Proportional to 294,741.20, 442,111.80 and 268,936.40

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Solution

The fourth proportional to 294,741.20, 442,111.80 and 268,936.40 is: 403,404.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,741.20 : 442,111.80 = 268,936.40 : x
  2. Step 2: Convert to fraction form
    294,741.20/442,111.80 = 268,936.40/x
  3. Step 3: Cross multiply
    294,741.20x = 442,111.80 × 268,936.40
  4. Step 4: Simplify right side
    294,741.20x = 118,899,955,889.52
  5. Step 5: Solve for x
    x = 118,899,955,889.52/294,741.20
  6. Step 6: Final answer
    x = 403,404.60

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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.