Home / 345,667.37-518,501.07-109,028.51

Finding the Fourth Proportional to 345,667.37, 518,501.07 and 109,028.51

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Solution

The fourth proportional to 345,667.37, 518,501.07 and 109,028.51 is: 163,542.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,667.37 : 518,501.07 = 109,028.51 : x
  2. Step 2: Convert to fraction form
    345,667.37/518,501.07 = 109,028.51/x
  3. Step 3: Cross multiply
    345,667.37x = 518,501.07 × 109,028.51
  4. Step 4: Simplify right side
    345,667.37x = 56,531,397,295.74
  5. Step 5: Solve for x
    x = 56,531,397,295.74/345,667.37
  6. Step 6: Final answer
    x = 163,542.76

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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.