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Finding the Fourth Proportional to 318,909, 440,094.44 and 175,668.60

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Solution

The fourth proportional to 318,909, 440,094.44 and 175,668.60 is: 242,422.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,909 : 440,094.44 = 175,668.60 : x
  2. Step 2: Convert to fraction form
    318,909/440,094.44 = 175,668.60/x
  3. Step 3: Cross multiply
    318,909x = 440,094.44 × 175,668.60
  4. Step 4: Simplify right side
    318,909x = 77,310,774,142.58
  5. Step 5: Solve for x
    x = 77,310,774,142.58/318,909
  6. Step 6: Final answer
    x = 242,422.68

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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.