Home / 208,543.69-312,818.60-144,438.62

Finding the Fourth Proportional to 208,543.69, 312,818.60 and 144,438.62

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Solution

The fourth proportional to 208,543.69, 312,818.60 and 144,438.62 is: 216,660.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,543.69 : 312,818.60 = 144,438.62 : x
  2. Step 2: Convert to fraction form
    208,543.69/312,818.60 = 144,438.62/x
  3. Step 3: Cross multiply
    208,543.69x = 312,818.60 × 144,438.62
  4. Step 4: Simplify right side
    208,543.69x = 45,183,085,691.34
  5. Step 5: Solve for x
    x = 45,183,085,691.34/208,543.69
  6. Step 6: Final answer
    x = 216,660.05

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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.