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Finding the Fourth Proportional to 297,390.72, 410,423.64 and 170,090.88

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Solution

The fourth proportional to 297,390.72, 410,423.64 and 170,090.88 is: 234,739.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,390.72 : 410,423.64 = 170,090.88 : x
  2. Step 2: Convert to fraction form
    297,390.72/410,423.64 = 170,090.88/x
  3. Step 3: Cross multiply
    297,390.72x = 410,423.64 × 170,090.88
  4. Step 4: Simplify right side
    297,390.72x = 69,809,318,100.40
  5. Step 5: Solve for x
    x = 69,809,318,100.40/297,390.72
  6. Step 6: Final answer
    x = 234,739.40

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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.