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Finding the Fourth Proportional to 398,599.67, 597,901.67 and 118,119.35

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Solution

The fourth proportional to 398,599.67, 597,901.67 and 118,119.35 is: 177,179.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,599.67 : 597,901.67 = 118,119.35 : x
  2. Step 2: Convert to fraction form
    398,599.67/597,901.67 = 118,119.35/x
  3. Step 3: Cross multiply
    398,599.67x = 597,901.67 × 118,119.35
  4. Step 4: Simplify right side
    398,599.67x = 70,623,756,624.31
  5. Step 5: Solve for x
    x = 70,623,756,624.31/398,599.67
  6. Step 6: Final answer
    x = 177,179.67

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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.