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Finding the Fourth Proportional to 286,996.48, 430,591.60 and 127,050.35

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Solution

The fourth proportional to 286,996.48, 430,591.60 and 127,050.35 is: 190,618.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,996.48 : 430,591.60 = 127,050.35 : x
  2. Step 2: Convert to fraction form
    286,996.48/430,591.60 = 127,050.35/x
  3. Step 3: Cross multiply
    286,996.48x = 430,591.60 × 127,050.35
  4. Step 4: Simplify right side
    286,996.48x = 54,706,811,989.30
  5. Step 5: Solve for x
    x = 54,706,811,989.30/286,996.48
  6. Step 6: Final answer
    x = 190,618.41

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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.