Home / 216,767.04-299,131.44-121,271.64

Finding the Fourth Proportional to 216,767.04, 299,131.44 and 121,271.64

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Solution

The fourth proportional to 216,767.04, 299,131.44 and 121,271.64 is: 167,350.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,767.04 : 299,131.44 = 121,271.64 : x
  2. Step 2: Convert to fraction form
    216,767.04/299,131.44 = 121,271.64/x
  3. Step 3: Cross multiply
    216,767.04x = 299,131.44 × 121,271.64
  4. Step 4: Simplify right side
    216,767.04x = 36,276,160,304.36
  5. Step 5: Solve for x
    x = 36,276,160,304.36/216,767.04
  6. Step 6: Final answer
    x = 167,350.90

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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.