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Finding the Fourth Proportional to 307,088.82, 423,873.81 and 193,986.90

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Solution

The fourth proportional to 307,088.82, 423,873.81 and 193,986.90 is: 267,759.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,088.82 : 423,873.81 = 193,986.90 : x
  2. Step 2: Convert to fraction form
    307,088.82/423,873.81 = 193,986.90/x
  3. Step 3: Cross multiply
    307,088.82x = 423,873.81 × 193,986.90
  4. Step 4: Simplify right side
    307,088.82x = 82,225,966,393.09
  5. Step 5: Solve for x
    x = 82,225,966,393.09/307,088.82
  6. Step 6: Final answer
    x = 267,759.56

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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.