Home / 209,235.92-288,743.24-155,760.08

Finding the Fourth Proportional to 209,235.92, 288,743.24 and 155,760.08

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Solution

The fourth proportional to 209,235.92, 288,743.24 and 155,760.08 is: 214,947.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,235.92 : 288,743.24 = 155,760.08 : x
  2. Step 2: Convert to fraction form
    209,235.92/288,743.24 = 155,760.08/x
  3. Step 3: Cross multiply
    209,235.92x = 288,743.24 × 155,760.08
  4. Step 4: Simplify right side
    209,235.92x = 44,974,670,161.86
  5. Step 5: Solve for x
    x = 44,974,670,161.86/209,235.92
  6. Step 6: Final answer
    x = 214,947.18

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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.