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Finding the Fourth Proportional to 245,136.80, 367,316.40 and 161,933.60

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Solution

The fourth proportional to 245,136.80, 367,316.40 and 161,933.60 is: 242,643.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,136.80 : 367,316.40 = 161,933.60 : x
  2. Step 2: Convert to fraction form
    245,136.80/367,316.40 = 161,933.60/x
  3. Step 3: Cross multiply
    245,136.80x = 367,316.40 × 161,933.60
  4. Step 4: Simplify right side
    245,136.80x = 59,480,866,991.04
  5. Step 5: Solve for x
    x = 59,480,866,991.04/245,136.80
  6. Step 6: Final answer
    x = 242,643.56

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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.