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Finding the Fourth Proportional to 315,610.81, 435,545.70 and 179,653.52

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Solution

The fourth proportional to 315,610.81, 435,545.70 and 179,653.52 is: 247,923.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,610.81 : 435,545.70 = 179,653.52 : x
  2. Step 2: Convert to fraction form
    315,610.81/435,545.70 = 179,653.52/x
  3. Step 3: Cross multiply
    315,610.81x = 435,545.70 × 179,653.52
  4. Step 4: Simplify right side
    315,610.81x = 78,247,318,125.86
  5. Step 5: Solve for x
    x = 78,247,318,125.86/315,610.81
  6. Step 6: Final answer
    x = 247,923.44

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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.