Home / 317,865.71-438,679.27-181,942.30

Finding the Fourth Proportional to 317,865.71, 438,679.27 and 181,942.30

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Solution

The fourth proportional to 317,865.71, 438,679.27 and 181,942.30 is: 251,094.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,865.71 : 438,679.27 = 181,942.30 : x
  2. Step 2: Convert to fraction form
    317,865.71/438,679.27 = 181,942.30/x
  3. Step 3: Cross multiply
    317,865.71x = 438,679.27 × 181,942.30
  4. Step 4: Simplify right side
    317,865.71x = 79,814,315,346.12
  5. Step 5: Solve for x
    x = 79,814,315,346.12/317,865.71
  6. Step 6: Final answer
    x = 251,094.45

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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.