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Finding the Fourth Proportional to 535,816.20, 803,724.30 and 161,790.60

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Solution

The fourth proportional to 535,816.20, 803,724.30 and 161,790.60 is: 242,685.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,816.20 : 803,724.30 = 161,790.60 : x
  2. Step 2: Convert to fraction form
    535,816.20/803,724.30 = 161,790.60/x
  3. Step 3: Cross multiply
    535,816.20x = 803,724.30 × 161,790.60
  4. Step 4: Simplify right side
    535,816.20x = 130,035,036,731.58
  5. Step 5: Solve for x
    x = 130,035,036,731.58/535,816.20
  6. Step 6: Final answer
    x = 242,685.90

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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.