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Finding the Fourth Proportional to 357,765.60, 536,666.78 and 91,528.41

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Solution

The fourth proportional to 357,765.60, 536,666.78 and 91,528.41 is: 137,297.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,765.60 : 536,666.78 = 91,528.41 : x
  2. Step 2: Convert to fraction form
    357,765.60/536,666.78 = 91,528.41/x
  3. Step 3: Cross multiply
    357,765.60x = 536,666.78 × 91,528.41
  4. Step 4: Simplify right side
    357,765.60x = 49,120,256,615.58
  5. Step 5: Solve for x
    x = 49,120,256,615.58/357,765.60
  6. Step 6: Final answer
    x = 137,297.32

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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.