Home / 525,190.12-787,801.38-205,329.22

Finding the Fourth Proportional to 525,190.12, 787,801.38 and 205,329.22

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Solution

The fourth proportional to 525,190.12, 787,801.38 and 205,329.22 is: 308,000.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,190.12 : 787,801.38 = 205,329.22 : x
  2. Step 2: Convert to fraction form
    525,190.12/787,801.38 = 205,329.22/x
  3. Step 3: Cross multiply
    525,190.12x = 787,801.38 × 205,329.22
  4. Step 4: Simplify right side
    525,190.12x = 161,758,643,212.76
  5. Step 5: Solve for x
    x = 161,758,643,212.76/525,190.12
  6. Step 6: Final answer
    x = 308,000.16

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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.