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Finding the Fourth Proportional to 375,690, 518,505.35 and 232,496.18

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Solution

The fourth proportional to 375,690, 518,505.35 and 232,496.18 is: 320,877.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,690 : 518,505.35 = 232,496.18 : x
  2. Step 2: Convert to fraction form
    375,690/518,505.35 = 232,496.18/x
  3. Step 3: Cross multiply
    375,690x = 518,505.35 × 232,496.18
  4. Step 4: Simplify right side
    375,690x = 120,550,509,429.56
  5. Step 5: Solve for x
    x = 120,550,509,429.56/375,690
  6. Step 6: Final answer
    x = 320,877.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.