Home / 272,150.28-407,735.64-256,139.82

Finding the Fourth Proportional to 272,150.28, 407,735.64 and 256,139.82

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Solution

The fourth proportional to 272,150.28, 407,735.64 and 256,139.82 is: 383,748.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,150.28 : 407,735.64 = 256,139.82 : x
  2. Step 2: Convert to fraction form
    272,150.28/407,735.64 = 256,139.82/x
  3. Step 3: Cross multiply
    272,150.28x = 407,735.64 × 256,139.82
  4. Step 4: Simplify right side
    272,150.28x = 104,437,333,437.19
  5. Step 5: Solve for x
    x = 104,437,333,437.19/272,150.28
  6. Step 6: Final answer
    x = 383,748.76

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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.