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Finding the Fourth Proportional to 384,939.48, 577,372 and 118,628.48

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Solution

The fourth proportional to 384,939.48, 577,372 and 118,628.48 is: 177,931.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,939.48 : 577,372 = 118,628.48 : x
  2. Step 2: Convert to fraction form
    384,939.48/577,372 = 118,628.48/x
  3. Step 3: Cross multiply
    384,939.48x = 577,372 × 118,628.48
  4. Step 4: Simplify right side
    384,939.48x = 68,492,762,754.56
  5. Step 5: Solve for x
    x = 68,492,762,754.56/384,939.48
  6. Step 6: Final answer
    x = 177,931.25

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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.