Home / 436,784.21-655,179.98-121,265.72

Finding the Fourth Proportional to 436,784.21, 655,179.98 and 121,265.72

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Solution

The fourth proportional to 436,784.21, 655,179.98 and 121,265.72 is: 181,899.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,784.21 : 655,179.98 = 121,265.72 : x
  2. Step 2: Convert to fraction form
    436,784.21/655,179.98 = 121,265.72/x
  3. Step 3: Cross multiply
    436,784.21x = 655,179.98 × 121,265.72
  4. Step 4: Simplify right side
    436,784.21x = 79,450,872,004.29
  5. Step 5: Solve for x
    x = 79,450,872,004.29/436,784.21
  6. Step 6: Final answer
    x = 181,899.60

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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.