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Finding the Fourth Proportional to 385,235.60, 577,680.60 and 148,499.60

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Solution

The fourth proportional to 385,235.60, 577,680.60 and 148,499.60 is: 222,682.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,235.60 : 577,680.60 = 148,499.60 : x
  2. Step 2: Convert to fraction form
    385,235.60/577,680.60 = 148,499.60/x
  3. Step 3: Cross multiply
    385,235.60x = 577,680.60 × 148,499.60
  4. Step 4: Simplify right side
    385,235.60x = 85,785,338,027.76
  5. Step 5: Solve for x
    x = 85,785,338,027.76/385,235.60
  6. Step 6: Final answer
    x = 222,682.79

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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.