Home / 216,839.04-299,260.62-121,369.20

Finding the Fourth Proportional to 216,839.04, 299,260.62 and 121,369.20

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Solution

The fourth proportional to 216,839.04, 299,260.62 and 121,369.20 is: 167,502.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,839.04 : 299,260.62 = 121,369.20 : x
  2. Step 2: Convert to fraction form
    216,839.04/299,260.62 = 121,369.20/x
  3. Step 3: Cross multiply
    216,839.04x = 299,260.62 × 121,369.20
  4. Step 4: Simplify right side
    216,839.04x = 36,321,022,040.90
  5. Step 5: Solve for x
    x = 36,321,022,040.90/216,839.04
  6. Step 6: Final answer
    x = 167,502.23

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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.