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Finding the Fourth Proportional to 255,513.98, 352,420.44 and 187,508

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Solution

The fourth proportional to 255,513.98, 352,420.44 and 187,508 is: 258,622.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,513.98 : 352,420.44 = 187,508 : x
  2. Step 2: Convert to fraction form
    255,513.98/352,420.44 = 187,508/x
  3. Step 3: Cross multiply
    255,513.98x = 352,420.44 × 187,508
  4. Step 4: Simplify right side
    255,513.98x = 66,081,651,863.52
  5. Step 5: Solve for x
    x = 66,081,651,863.52/255,513.98
  6. Step 6: Final answer
    x = 258,622.45

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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.