Home / 345,364.75-518,342.37-135,150.31

Finding the Fourth Proportional to 345,364.75, 518,342.37 and 135,150.31

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Solution

The fourth proportional to 345,364.75, 518,342.37 and 135,150.31 is: 202,841.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,364.75 : 518,342.37 = 135,150.31 : x
  2. Step 2: Convert to fraction form
    345,364.75/518,342.37 = 135,150.31/x
  3. Step 3: Cross multiply
    345,364.75x = 518,342.37 × 135,150.31
  4. Step 4: Simplify right side
    345,364.75x = 70,054,131,991.63
  5. Step 5: Solve for x
    x = 70,054,131,991.63/345,364.75
  6. Step 6: Final answer
    x = 202,841.00

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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.