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Finding the Fourth Proportional to 285,800.88, 428,602.76 and 117,273.36

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Solution

The fourth proportional to 285,800.88, 428,602.76 and 117,273.36 is: 175,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,800.88 : 428,602.76 = 117,273.36 : x
  2. Step 2: Convert to fraction form
    285,800.88/428,602.76 = 117,273.36/x
  3. Step 3: Cross multiply
    285,800.88x = 428,602.76 × 117,273.36
  4. Step 4: Simplify right side
    285,800.88x = 50,263,685,770.47
  5. Step 5: Solve for x
    x = 50,263,685,770.47/285,800.88
  6. Step 6: Final answer
    x = 175,869.60

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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.