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Finding the Fourth Proportional to 613,373.07, 920,051.37 and 157,961.79

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Solution

The fourth proportional to 613,373.07, 920,051.37 and 157,961.79 is: 236,940.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,373.07 : 920,051.37 = 157,961.79 : x
  2. Step 2: Convert to fraction form
    613,373.07/920,051.37 = 157,961.79/x
  3. Step 3: Cross multiply
    613,373.07x = 920,051.37 × 157,961.79
  4. Step 4: Simplify right side
    613,373.07x = 145,332,961,297.15
  5. Step 5: Solve for x
    x = 145,332,961,297.15/613,373.07
  6. Step 6: Final answer
    x = 236,940.56

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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.