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Finding the Fourth Proportional to 525,121.80, 787,901.40 and 170,244.60

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Solution

The fourth proportional to 525,121.80, 787,901.40 and 170,244.60 is: 255,437.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,121.80 : 787,901.40 = 170,244.60 : x
  2. Step 2: Convert to fraction form
    525,121.80/787,901.40 = 170,244.60/x
  3. Step 3: Cross multiply
    525,121.80x = 787,901.40 × 170,244.60
  4. Step 4: Simplify right side
    525,121.80x = 134,135,958,682.44
  5. Step 5: Solve for x
    x = 134,135,958,682.44/525,121.80
  6. Step 6: Final answer
    x = 255,437.80

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1.5x scale

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.