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Finding the Fourth Proportional to 303,102.72, 418,272.60 and 167,136.60

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Solution

The fourth proportional to 303,102.72, 418,272.60 and 167,136.60 is: 230,643.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,102.72 : 418,272.60 = 167,136.60 : x
  2. Step 2: Convert to fraction form
    303,102.72/418,272.60 = 167,136.60/x
  3. Step 3: Cross multiply
    303,102.72x = 418,272.60 × 167,136.60
  4. Step 4: Simplify right side
    303,102.72x = 69,908,660,237.16
  5. Step 5: Solve for x
    x = 69,908,660,237.16/303,102.72
  6. Step 6: Final answer
    x = 230,643.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.