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Finding the Fourth Proportional to 525,208.80, 787,910.40 and 170,234.40

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Solution

The fourth proportional to 525,208.80, 787,910.40 and 170,234.40 is: 255,383.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,208.80 : 787,910.40 = 170,234.40 : x
  2. Step 2: Convert to fraction form
    525,208.80/787,910.40 = 170,234.40/x
  3. Step 3: Cross multiply
    525,208.80x = 787,910.40 × 170,234.40
  4. Step 4: Simplify right side
    525,208.80x = 134,129,454,197.76
  5. Step 5: Solve for x
    x = 134,129,454,197.76/525,208.80
  6. Step 6: Final answer
    x = 255,383.11

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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.