Home / 349,030.12-523,571.70-135,706.38

Finding the Fourth Proportional to 349,030.12, 523,571.70 and 135,706.38

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Solution

The fourth proportional to 349,030.12, 523,571.70 and 135,706.38 is: 203,569.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,030.12 : 523,571.70 = 135,706.38 : x
  2. Step 2: Convert to fraction form
    349,030.12/523,571.70 = 135,706.38/x
  3. Step 3: Cross multiply
    349,030.12x = 523,571.70 × 135,706.38
  4. Step 4: Simplify right side
    349,030.12x = 71,052,019,904.66
  5. Step 5: Solve for x
    x = 71,052,019,904.66/349,030.12
  6. Step 6: Final answer
    x = 203,569.88

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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.