Home / 436,221.28-654,064-169,671.12

Finding the Fourth Proportional to 436,221.28, 654,064 and 169,671.12

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Solution

The fourth proportional to 436,221.28, 654,064 and 169,671.12 is: 254,402.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,221.28 : 654,064 = 169,671.12 : x
  2. Step 2: Convert to fraction form
    436,221.28/654,064 = 169,671.12/x
  3. Step 3: Cross multiply
    436,221.28x = 654,064 × 169,671.12
  4. Step 4: Simplify right side
    436,221.28x = 110,975,771,431.68
  5. Step 5: Solve for x
    x = 110,975,771,431.68/436,221.28
  6. Step 6: Final answer
    x = 254,402.47

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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.