Home / 216,305.39-298,079.89-155,761.73

Finding the Fourth Proportional to 216,305.39, 298,079.89 and 155,761.73

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Solution

The fourth proportional to 216,305.39, 298,079.89 and 155,761.73 is: 214,647.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,305.39 : 298,079.89 = 155,761.73 : x
  2. Step 2: Convert to fraction form
    216,305.39/298,079.89 = 155,761.73/x
  3. Step 3: Cross multiply
    216,305.39x = 298,079.89 × 155,761.73
  4. Step 4: Simplify right side
    216,305.39x = 46,429,440,089.81
  5. Step 5: Solve for x
    x = 46,429,440,089.81/216,305.39
  6. Step 6: Final answer
    x = 214,647.64

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1.5x scale

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.