Home / 253,639.82-380,497.10-76,161.13

Finding the Fourth Proportional to 253,639.82, 380,497.10 and 76,161.13

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Solution

The fourth proportional to 253,639.82, 380,497.10 and 76,161.13 is: 114,252.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,639.82 : 380,497.10 = 76,161.13 : x
  2. Step 2: Convert to fraction form
    253,639.82/380,497.10 = 76,161.13/x
  3. Step 3: Cross multiply
    253,639.82x = 380,497.10 × 76,161.13
  4. Step 4: Simplify right side
    253,639.82x = 28,979,089,097.72
  5. Step 5: Solve for x
    x = 28,979,089,097.72/253,639.82
  6. Step 6: Final answer
    x = 114,252.92

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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.