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Finding the Fourth Proportional to 286,952.40, 430,428.60 and 273,174.30

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Solution

The fourth proportional to 286,952.40, 430,428.60 and 273,174.30 is: 409,761.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,952.40 : 430,428.60 = 273,174.30 : x
  2. Step 2: Convert to fraction form
    286,952.40/430,428.60 = 273,174.30/x
  3. Step 3: Cross multiply
    286,952.40x = 430,428.60 × 273,174.30
  4. Step 4: Simplify right side
    286,952.40x = 117,582,031,504.98
  5. Step 5: Solve for x
    x = 117,582,031,504.98/286,952.40
  6. Step 6: Final answer
    x = 409,761.45

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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.