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Finding the Fourth Proportional to 375,678.80, 518,489.88 and 232,485

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Solution

The fourth proportional to 375,678.80, 518,489.88 and 232,485 is: 320,862.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,678.80 : 518,489.88 = 232,485 : x
  2. Step 2: Convert to fraction form
    375,678.80/518,489.88 = 232,485/x
  3. Step 3: Cross multiply
    375,678.80x = 518,489.88 × 232,485
  4. Step 4: Simplify right side
    375,678.80x = 120,541,119,751.80
  5. Step 5: Solve for x
    x = 120,541,119,751.80/375,678.80
  6. Step 6: Final answer
    x = 320,862.18

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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.