Home / 344,868.12-517,428.54-145,238.76

Finding the Fourth Proportional to 344,868.12, 517,428.54 and 145,238.76

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Solution

The fourth proportional to 344,868.12, 517,428.54 and 145,238.76 is: 217,911.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,868.12 : 517,428.54 = 145,238.76 : x
  2. Step 2: Convert to fraction form
    344,868.12/517,428.54 = 145,238.76/x
  3. Step 3: Cross multiply
    344,868.12x = 517,428.54 × 145,238.76
  4. Step 4: Simplify right side
    344,868.12x = 75,150,679,538.21
  5. Step 5: Solve for x
    x = 75,150,679,538.21/344,868.12
  6. Step 6: Final answer
    x = 217,911.36

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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.