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Finding the Fourth Proportional to 235,670.08, 325,219.39 and 128,240.41

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Solution

The fourth proportional to 235,670.08, 325,219.39 and 128,240.41 is: 176,968.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,670.08 : 325,219.39 = 128,240.41 : x
  2. Step 2: Convert to fraction form
    235,670.08/325,219.39 = 128,240.41/x
  3. Step 3: Cross multiply
    235,670.08x = 325,219.39 × 128,240.41
  4. Step 4: Simplify right side
    235,670.08x = 41,706,267,913.55
  5. Step 5: Solve for x
    x = 41,706,267,913.55/235,670.08
  6. Step 6: Final answer
    x = 176,968.87

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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.