Home / 345,685.20-518,320.44-135,072.24

Finding the Fourth Proportional to 345,685.20, 518,320.44 and 135,072.24

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Solution

The fourth proportional to 345,685.20, 518,320.44 and 135,072.24 is: 202,527.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,685.20 : 518,320.44 = 135,072.24 : x
  2. Step 2: Convert to fraction form
    345,685.20/518,320.44 = 135,072.24/x
  3. Step 3: Cross multiply
    345,685.20x = 518,320.44 × 135,072.24
  4. Step 4: Simplify right side
    345,685.20x = 70,010,702,868.59
  5. Step 5: Solve for x
    x = 70,010,702,868.59/345,685.20
  6. Step 6: Final answer
    x = 202,527.34

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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.