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Finding the Fourth Proportional to 525,519.70, 788,208.17 and 205,448.91

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Solution

The fourth proportional to 525,519.70, 788,208.17 and 205,448.91 is: 308,145.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,519.70 : 788,208.17 = 205,448.91 : x
  2. Step 2: Convert to fraction form
    525,519.70/788,208.17 = 205,448.91/x
  3. Step 3: Cross multiply
    525,519.70x = 788,208.17 × 205,448.91
  4. Step 4: Simplify right side
    525,519.70x = 161,936,505,396.57
  5. Step 5: Solve for x
    x = 161,936,505,396.57/525,519.70
  6. Step 6: Final answer
    x = 308,145.45

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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.