Home / 208,545.69-312,821.60-144,440.62

Finding the Fourth Proportional to 208,545.69, 312,821.60 and 144,440.62

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Solution

The fourth proportional to 208,545.69, 312,821.60 and 144,440.62 is: 216,663.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,545.69 : 312,821.60 = 144,440.62 : x
  2. Step 2: Convert to fraction form
    208,545.69/312,821.60 = 144,440.62/x
  3. Step 3: Cross multiply
    208,545.69x = 312,821.60 × 144,440.62
  4. Step 4: Simplify right side
    208,545.69x = 45,184,145,853.39
  5. Step 5: Solve for x
    x = 45,184,145,853.39/208,545.69
  6. Step 6: Final answer
    x = 216,663.05

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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.