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Finding the Fourth Proportional to 525,114.70, 787,672.05 and 170,164.60

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Solution

The fourth proportional to 525,114.70, 787,672.05 and 170,164.60 is: 255,246.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,114.70 : 787,672.05 = 170,164.60 : x
  2. Step 2: Convert to fraction form
    525,114.70/787,672.05 = 170,164.60/x
  3. Step 3: Cross multiply
    525,114.70x = 787,672.05 × 170,164.60
  4. Step 4: Simplify right side
    525,114.70x = 134,033,899,319.43
  5. Step 5: Solve for x
    x = 134,033,899,319.43/525,114.70
  6. Step 6: Final answer
    x = 255,246.90

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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.