Home / 221,975.04-306,318.72-135,966.72

Finding the Fourth Proportional to 221,975.04, 306,318.72 and 135,966.72

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Solution

The fourth proportional to 221,975.04, 306,318.72 and 135,966.72 is: 187,629.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,975.04 : 306,318.72 = 135,966.72 : x
  2. Step 2: Convert to fraction form
    221,975.04/306,318.72 = 135,966.72/x
  3. Step 3: Cross multiply
    221,975.04x = 306,318.72 × 135,966.72
  4. Step 4: Simplify right side
    221,975.04x = 41,649,151,633.00
  5. Step 5: Solve for x
    x = 41,649,151,633.00/221,975.04
  6. Step 6: Final answer
    x = 187,629.89

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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.