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Finding the Fourth Proportional to 296,987.60, 445,481.40 and 293,877.20

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Solution

The fourth proportional to 296,987.60, 445,481.40 and 293,877.20 is: 440,815.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,987.60 : 445,481.40 = 293,877.20 : x
  2. Step 2: Convert to fraction form
    296,987.60/445,481.40 = 293,877.20/x
  3. Step 3: Cross multiply
    296,987.60x = 445,481.40 × 293,877.20
  4. Step 4: Simplify right side
    296,987.60x = 130,916,826,484.08
  5. Step 5: Solve for x
    x = 130,916,826,484.08/296,987.60
  6. Step 6: Final answer
    x = 440,815.80

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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.