Home / 208,939.73-288,354.68-118,311.67

Finding the Fourth Proportional to 208,939.73, 288,354.68 and 118,311.67

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Solution

The fourth proportional to 208,939.73, 288,354.68 and 118,311.67 is: 163,280.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,939.73 : 288,354.68 = 118,311.67 : x
  2. Step 2: Convert to fraction form
    208,939.73/288,354.68 = 118,311.67/x
  3. Step 3: Cross multiply
    208,939.73x = 288,354.68 × 118,311.67
  4. Step 4: Simplify right side
    208,939.73x = 34,115,723,318.01
  5. Step 5: Solve for x
    x = 34,115,723,318.01/208,939.73
  6. Step 6: Final answer
    x = 163,280.21

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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.