Home / 272,438.14-375,958.77-157,721.64

Finding the Fourth Proportional to 272,438.14, 375,958.77 and 157,721.64

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Solution

The fourth proportional to 272,438.14, 375,958.77 and 157,721.64 is: 217,652.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,438.14 : 375,958.77 = 157,721.64 : x
  2. Step 2: Convert to fraction form
    272,438.14/375,958.77 = 157,721.64/x
  3. Step 3: Cross multiply
    272,438.14x = 375,958.77 × 157,721.64
  4. Step 4: Simplify right side
    272,438.14x = 59,296,833,776.78
  5. Step 5: Solve for x
    x = 59,296,833,776.78/272,438.14
  6. Step 6: Final answer
    x = 217,652.47

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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.