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Finding the Fourth Proportional to 525,422.50, 788,059.86 and 170,439.64

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Solution

The fourth proportional to 525,422.50, 788,059.86 and 170,439.64 is: 255,635.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,422.50 : 788,059.86 = 170,439.64 : x
  2. Step 2: Convert to fraction form
    525,422.50/788,059.86 = 170,439.64/x
  3. Step 3: Cross multiply
    525,422.50x = 788,059.86 × 170,439.64
  4. Step 4: Simplify right side
    525,422.50x = 134,316,638,836.85
  5. Step 5: Solve for x
    x = 134,316,638,836.85/525,422.50
  6. Step 6: Final answer
    x = 255,635.49

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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.