Home / 318,771.89-439,905.21-175,531.59

Finding the Fourth Proportional to 318,771.89, 439,905.21 and 175,531.59

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Solution

The fourth proportional to 318,771.89, 439,905.21 and 175,531.59 is: 242,233.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,771.89 : 439,905.21 = 175,531.59 : x
  2. Step 2: Convert to fraction form
    318,771.89/439,905.21 = 175,531.59/x
  3. Step 3: Cross multiply
    318,771.89x = 439,905.21 × 175,531.59
  4. Step 4: Simplify right side
    318,771.89x = 77,217,261,785.41
  5. Step 5: Solve for x
    x = 77,217,261,785.41/318,771.89
  6. Step 6: Final answer
    x = 242,233.60

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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.