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Finding the Fourth Proportional to 297,056.88, 445,600.44 and 86,710.68

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Solution

The fourth proportional to 297,056.88, 445,600.44 and 86,710.68 is: 130,070.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,056.88 : 445,600.44 = 86,710.68 : x
  2. Step 2: Convert to fraction form
    297,056.88/445,600.44 = 86,710.68/x
  3. Step 3: Cross multiply
    297,056.88x = 445,600.44 × 86,710.68
  4. Step 4: Simplify right side
    297,056.88x = 38,638,317,160.70
  5. Step 5: Solve for x
    x = 38,638,317,160.70/297,056.88
  6. Step 6: Final answer
    x = 130,070.43

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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.