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Finding the Fourth Proportional to 525,234.80, 787,949.40 and 170,260.40

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Solution

The fourth proportional to 525,234.80, 787,949.40 and 170,260.40 is: 255,422.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,234.80 : 787,949.40 = 170,260.40 : x
  2. Step 2: Convert to fraction form
    525,234.80/787,949.40 = 170,260.40/x
  3. Step 3: Cross multiply
    525,234.80x = 787,949.40 × 170,260.40
  4. Step 4: Simplify right side
    525,234.80x = 134,156,580,023.76
  5. Step 5: Solve for x
    x = 134,156,580,023.76/525,234.80
  6. Step 6: Final answer
    x = 255,422.11

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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.