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Finding the Fourth Proportional to 253,528.16, 379,745.49 and 238,622.88

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Solution

The fourth proportional to 253,528.16, 379,745.49 and 238,622.88 is: 357,419.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,528.16 : 379,745.49 = 238,622.88 : x
  2. Step 2: Convert to fraction form
    253,528.16/379,745.49 = 238,622.88/x
  3. Step 3: Cross multiply
    253,528.16x = 379,745.49 × 238,622.88
  4. Step 4: Simplify right side
    253,528.16x = 90,615,962,490.81
  5. Step 5: Solve for x
    x = 90,615,962,490.81/253,528.16
  6. Step 6: Final answer
    x = 357,419.72

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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.