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Finding the Fourth Proportional to 297,931.20, 446,896.80 and 245,443.20

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Solution

The fourth proportional to 297,931.20, 446,896.80 and 245,443.20 is: 368,164.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,931.20 : 446,896.80 = 245,443.20 : x
  2. Step 2: Convert to fraction form
    297,931.20/446,896.80 = 245,443.20/x
  3. Step 3: Cross multiply
    297,931.20x = 446,896.80 × 245,443.20
  4. Step 4: Simplify right side
    297,931.20x = 109,687,780,661.76
  5. Step 5: Solve for x
    x = 109,687,780,661.76/297,931.20
  6. Step 6: Final answer
    x = 368,164.80

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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.