Home / 319,157.12-440,431.55-175,930.49

Finding the Fourth Proportional to 319,157.12, 440,431.55 and 175,930.49

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Solution

The fourth proportional to 319,157.12, 440,431.55 and 175,930.49 is: 242,781.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,157.12 : 440,431.55 = 175,930.49 : x
  2. Step 2: Convert to fraction form
    319,157.12/440,431.55 = 175,930.49/x
  3. Step 3: Cross multiply
    319,157.12x = 440,431.55 × 175,930.49
  4. Step 4: Simplify right side
    319,157.12x = 77,485,335,321.15
  5. Step 5: Solve for x
    x = 77,485,335,321.15/319,157.12
  6. Step 6: Final answer
    x = 242,781.16

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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.