Home / 525,191.20-787,981.20-170,216.80

Finding the Fourth Proportional to 525,191.20, 787,981.20 and 170,216.80

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Solution

The fourth proportional to 525,191.20, 787,981.20 and 170,216.80 is: 255,388.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,191.20 : 787,981.20 = 170,216.80 : x
  2. Step 2: Convert to fraction form
    525,191.20/787,981.20 = 170,216.80/x
  3. Step 3: Cross multiply
    525,191.20x = 787,981.20 × 170,216.80
  4. Step 4: Simplify right side
    525,191.20x = 134,127,638,324.16
  5. Step 5: Solve for x
    x = 134,127,638,324.16/525,191.20
  6. Step 6: Final answer
    x = 255,388.21

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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.