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Finding the Fourth Proportional to 304,564.60, 420,158.37 and 197,169.40

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Solution

The fourth proportional to 304,564.60, 420,158.37 and 197,169.40 is: 272,002.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,564.60 : 420,158.37 = 197,169.40 : x
  2. Step 2: Convert to fraction form
    304,564.60/420,158.37 = 197,169.40/x
  3. Step 3: Cross multiply
    304,564.60x = 420,158.37 × 197,169.40
  4. Step 4: Simplify right side
    304,564.60x = 82,842,373,717.88
  5. Step 5: Solve for x
    x = 82,842,373,717.88/304,564.60
  6. Step 6: Final answer
    x = 272,002.63

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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.