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Finding the Fourth Proportional to 342,161, 513,208.48 and 105,440.12

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Solution

The fourth proportional to 342,161, 513,208.48 and 105,440.12 is: 158,150.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,161 : 513,208.48 = 105,440.12 : x
  2. Step 2: Convert to fraction form
    342,161/513,208.48 = 105,440.12/x
  3. Step 3: Cross multiply
    342,161x = 513,208.48 × 105,440.12
  4. Step 4: Simplify right side
    342,161x = 54,112,763,716.22
  5. Step 5: Solve for x
    x = 54,112,763,716.22/342,161
  6. Step 6: Final answer
    x = 158,150.00

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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.