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Finding the Fourth Proportional to 235,349.84, 352,913.87 and 85,484.45

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Solution

The fourth proportional to 235,349.84, 352,913.87 and 85,484.45 is: 128,186.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,349.84 : 352,913.87 = 85,484.45 : x
  2. Step 2: Convert to fraction form
    235,349.84/352,913.87 = 85,484.45/x
  3. Step 3: Cross multiply
    235,349.84x = 352,913.87 × 85,484.45
  4. Step 4: Simplify right side
    235,349.84x = 30,168,645,882.33
  5. Step 5: Solve for x
    x = 30,168,645,882.33/235,349.84
  6. Step 6: Final answer
    x = 128,186.39

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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.