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Finding the Fourth Proportional to 286,883.70, 430,325.55 and 236,145.30

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Solution

The fourth proportional to 286,883.70, 430,325.55 and 236,145.30 is: 354,217.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,883.70 : 430,325.55 = 236,145.30 : x
  2. Step 2: Convert to fraction form
    286,883.70/430,325.55 = 236,145.30/x
  3. Step 3: Cross multiply
    286,883.70x = 430,325.55 × 236,145.30
  4. Step 4: Simplify right side
    286,883.70x = 101,619,356,102.42
  5. Step 5: Solve for x
    x = 101,619,356,102.42/286,883.70
  6. Step 6: Final answer
    x = 354,217.95

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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.