Home / 251,992.12-347,688.66-143,072.32

Finding the Fourth Proportional to 251,992.12, 347,688.66 and 143,072.32

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Solution

The fourth proportional to 251,992.12, 347,688.66 and 143,072.32 is: 197,405.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,992.12 : 347,688.66 = 143,072.32 : x
  2. Step 2: Convert to fraction form
    251,992.12/347,688.66 = 143,072.32/x
  3. Step 3: Cross multiply
    251,992.12x = 347,688.66 × 143,072.32
  4. Step 4: Simplify right side
    251,992.12x = 49,744,623,223.89
  5. Step 5: Solve for x
    x = 49,744,623,223.89/251,992.12
  6. Step 6: Final answer
    x = 197,405.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.