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Finding the Fourth Proportional to 356,830.08, 535,245.36 and 90,610.56

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Solution

The fourth proportional to 356,830.08, 535,245.36 and 90,610.56 is: 135,915.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,830.08 : 535,245.36 = 90,610.56 : x
  2. Step 2: Convert to fraction form
    356,830.08/535,245.36 = 90,610.56/x
  3. Step 3: Cross multiply
    356,830.08x = 535,245.36 × 90,610.56
  4. Step 4: Simplify right side
    356,830.08x = 48,498,881,807.00
  5. Step 5: Solve for x
    x = 48,498,881,807.00/356,830.08
  6. Step 6: Final answer
    x = 135,915.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.