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Finding the Fourth Proportional to 398,473.40, 597,870.30 and 161,834.60

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Solution

The fourth proportional to 398,473.40, 597,870.30 and 161,834.60 is: 242,816.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,473.40 : 597,870.30 = 161,834.60 : x
  2. Step 2: Convert to fraction form
    398,473.40/597,870.30 = 161,834.60/x
  3. Step 3: Cross multiply
    398,473.40x = 597,870.30 × 161,834.60
  4. Step 4: Simplify right side
    398,473.40x = 96,756,100,852.38
  5. Step 5: Solve for x
    x = 96,756,100,852.38/398,473.40
  6. Step 6: Final answer
    x = 242,816.96

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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.