Home / 216,216.84-298,185.66-135,653.16

Finding the Fourth Proportional to 216,216.84, 298,185.66 and 135,653.16

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Solution

The fourth proportional to 216,216.84, 298,185.66 and 135,653.16 is: 187,079.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,216.84 : 298,185.66 = 135,653.16 : x
  2. Step 2: Convert to fraction form
    216,216.84/298,185.66 = 135,653.16/x
  3. Step 3: Cross multiply
    216,216.84x = 298,185.66 × 135,653.16
  4. Step 4: Simplify right side
    216,216.84x = 40,449,827,045.69
  5. Step 5: Solve for x
    x = 40,449,827,045.69/216,216.84
  6. Step 6: Final answer
    x = 187,079.91

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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.