Home / 640,933.98-961,327.53-167,665.02

Finding the Fourth Proportional to 640,933.98, 961,327.53 and 167,665.02

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Solution

The fourth proportional to 640,933.98, 961,327.53 and 167,665.02 is: 251,478.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,933.98 : 961,327.53 = 167,665.02 : x
  2. Step 2: Convert to fraction form
    640,933.98/961,327.53 = 167,665.02/x
  3. Step 3: Cross multiply
    640,933.98x = 961,327.53 × 167,665.02
  4. Step 4: Simplify right side
    640,933.98x = 161,180,999,544.00
  5. Step 5: Solve for x
    x = 161,180,999,544.00/640,933.98
  6. Step 6: Final answer
    x = 251,478.32

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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.