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Finding the Fourth Proportional to 398,655.54, 550,277.96 and 237,561.12

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Solution

The fourth proportional to 398,655.54, 550,277.96 and 237,561.12 is: 327,913.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,655.54 : 550,277.96 = 237,561.12 : x
  2. Step 2: Convert to fraction form
    398,655.54/550,277.96 = 237,561.12/x
  3. Step 3: Cross multiply
    398,655.54x = 550,277.96 × 237,561.12
  4. Step 4: Simplify right side
    398,655.54x = 130,724,647,301.11
  5. Step 5: Solve for x
    x = 130,724,647,301.11/398,655.54
  6. Step 6: Final answer
    x = 327,913.79

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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.