Home / 279,136.28-385,197-151,811.84

Finding the Fourth Proportional to 279,136.28, 385,197 and 151,811.84

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Solution

The fourth proportional to 279,136.28, 385,197 and 151,811.84 is: 209,494.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,136.28 : 385,197 = 151,811.84 : x
  2. Step 2: Convert to fraction form
    279,136.28/385,197 = 151,811.84/x
  3. Step 3: Cross multiply
    279,136.28x = 385,197 × 151,811.84
  4. Step 4: Simplify right side
    279,136.28x = 58,477,465,332.48
  5. Step 5: Solve for x
    x = 58,477,465,332.48/279,136.28
  6. Step 6: Final answer
    x = 209,494.32

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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.