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Finding the Fourth Proportional to 398,308.50, 597,983.59 and 236,497.89

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Solution

The fourth proportional to 398,308.50, 597,983.59 and 236,497.89 is: 355,056.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,308.50 : 597,983.59 = 236,497.89 : x
  2. Step 2: Convert to fraction form
    398,308.50/597,983.59 = 236,497.89/x
  3. Step 3: Cross multiply
    398,308.50x = 597,983.59 × 236,497.89
  4. Step 4: Simplify right side
    398,308.50x = 141,421,857,289.63
  5. Step 5: Solve for x
    x = 141,421,857,289.63/398,308.50
  6. Step 6: Final answer
    x = 355,056.09

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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.