Home / 230,516.28-318,071.61-128,533.64

Finding the Fourth Proportional to 230,516.28, 318,071.61 and 128,533.64

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Solution

The fourth proportional to 230,516.28, 318,071.61 and 128,533.64 is: 177,353.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,516.28 : 318,071.61 = 128,533.64 : x
  2. Step 2: Convert to fraction form
    230,516.28/318,071.61 = 128,533.64/x
  3. Step 3: Cross multiply
    230,516.28x = 318,071.61 × 128,533.64
  4. Step 4: Simplify right side
    230,516.28x = 40,882,900,223.60
  5. Step 5: Solve for x
    x = 40,882,900,223.60/230,516.28
  6. Step 6: Final answer
    x = 177,353.64

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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.