Home / 285,501.20-428,258.64-95,964.32

Finding the Fourth Proportional to 285,501.20, 428,258.64 and 95,964.32

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Solution

The fourth proportional to 285,501.20, 428,258.64 and 95,964.32 is: 143,948.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,501.20 : 428,258.64 = 95,964.32 : x
  2. Step 2: Convert to fraction form
    285,501.20/428,258.64 = 95,964.32/x
  3. Step 3: Cross multiply
    285,501.20x = 428,258.64 × 95,964.32
  4. Step 4: Simplify right side
    285,501.20x = 41,097,549,171.72
  5. Step 5: Solve for x
    x = 41,097,549,171.72/285,501.20
  6. Step 6: Final answer
    x = 143,948.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.