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Finding the Fourth Proportional to 287,448.41, 430,845.65 and 174,880.50

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Solution

The fourth proportional to 287,448.41, 430,845.65 and 174,880.50 is: 262,121.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,448.41 : 430,845.65 = 174,880.50 : x
  2. Step 2: Convert to fraction form
    287,448.41/430,845.65 = 174,880.50/x
  3. Step 3: Cross multiply
    287,448.41x = 430,845.65 × 174,880.50
  4. Step 4: Simplify right side
    287,448.41x = 75,346,503,132.03
  5. Step 5: Solve for x
    x = 75,346,503,132.03/287,448.41
  6. Step 6: Final answer
    x = 262,121.83

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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.