Home / 306,485.69-459,723.92-137,886.96

Finding the Fourth Proportional to 306,485.69, 459,723.92 and 137,886.96

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Solution

The fourth proportional to 306,485.69, 459,723.92 and 137,886.96 is: 206,828.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,485.69 : 459,723.92 = 137,886.96 : x
  2. Step 2: Convert to fraction form
    306,485.69/459,723.92 = 137,886.96/x
  3. Step 3: Cross multiply
    306,485.69x = 459,723.92 × 137,886.96
  4. Step 4: Simplify right side
    306,485.69x = 63,389,931,469.46
  5. Step 5: Solve for x
    x = 63,389,931,469.46/306,485.69
  6. Step 6: Final answer
    x = 206,828.36

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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.