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Finding the Fourth Proportional to 268,485.89, 370,511.90 and 147,635.00

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Solution

The fourth proportional to 268,485.89, 370,511.90 and 147,635.00 is: 203,737.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,485.89 : 370,511.90 = 147,635.00 : x
  2. Step 2: Convert to fraction form
    268,485.89/370,511.90 = 147,635.00/x
  3. Step 3: Cross multiply
    268,485.89x = 370,511.90 × 147,635.00
  4. Step 4: Simplify right side
    268,485.89x = 54,700,521,765.77
  5. Step 5: Solve for x
    x = 54,700,521,765.77/268,485.89
  6. Step 6: Final answer
    x = 203,737.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.