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Finding the Fourth Proportional to 287,503.08, 430,777.89 and 174,842.52

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Solution

The fourth proportional to 287,503.08, 430,777.89 and 174,842.52 is: 261,973.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,503.08 : 430,777.89 = 174,842.52 : x
  2. Step 2: Convert to fraction form
    287,503.08/430,777.89 = 174,842.52/x
  3. Step 3: Cross multiply
    287,503.08x = 430,777.89 × 174,842.52
  4. Step 4: Simplify right side
    287,503.08x = 75,318,291,847.88
  5. Step 5: Solve for x
    x = 75,318,291,847.88/287,503.08
  6. Step 6: Final answer
    x = 261,973.86

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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.