Home / 253,078.16-379,540.56-133,070.45

Finding the Fourth Proportional to 253,078.16, 379,540.56 and 133,070.45

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Solution

The fourth proportional to 253,078.16, 379,540.56 and 133,070.45 is: 199,565.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,078.16 : 379,540.56 = 133,070.45 : x
  2. Step 2: Convert to fraction form
    253,078.16/379,540.56 = 133,070.45/x
  3. Step 3: Cross multiply
    253,078.16x = 379,540.56 × 133,070.45
  4. Step 4: Simplify right side
    253,078.16x = 50,505,631,214.75
  5. Step 5: Solve for x
    x = 50,505,631,214.75/253,078.16
  6. Step 6: Final answer
    x = 199,565.35

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1.5x scale

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.