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Finding the Fourth Proportional to 235,520.16, 325,014.66 and 128,087.88

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Solution

The fourth proportional to 235,520.16, 325,014.66 and 128,087.88 is: 176,759.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,520.16 : 325,014.66 = 128,087.88 : x
  2. Step 2: Convert to fraction form
    235,520.16/325,014.66 = 128,087.88/x
  3. Step 3: Cross multiply
    235,520.16x = 325,014.66 × 128,087.88
  4. Step 4: Simplify right side
    235,520.16x = 41,630,438,768.32
  5. Step 5: Solve for x
    x = 41,630,438,768.32/235,520.16
  6. Step 6: Final answer
    x = 176,759.56

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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.