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Finding the Fourth Proportional to 245,434.06, 368,059.94 and 85,468.92

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Solution

The fourth proportional to 245,434.06, 368,059.94 and 85,468.92 is: 128,171.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,434.06 : 368,059.94 = 85,468.92 : x
  2. Step 2: Convert to fraction form
    245,434.06/368,059.94 = 85,468.92/x
  3. Step 3: Cross multiply
    245,434.06x = 368,059.94 × 85,468.92
  4. Step 4: Simplify right side
    245,434.06x = 31,457,683,299.42
  5. Step 5: Solve for x
    x = 31,457,683,299.42/245,434.06
  6. Step 6: Final answer
    x = 128,171.63

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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.