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Finding the Fourth Proportional to 497,215.31, 686,155.88 and 270,860.27

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Solution

The fourth proportional to 497,215.31, 686,155.88 and 270,860.27 is: 373,786.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,215.31 : 686,155.88 = 270,860.27 : x
  2. Step 2: Convert to fraction form
    497,215.31/686,155.88 = 270,860.27/x
  3. Step 3: Cross multiply
    497,215.31x = 686,155.88 × 270,860.27
  4. Step 4: Simplify right side
    497,215.31x = 185,852,365,564.59
  5. Step 5: Solve for x
    x = 185,852,365,564.59/497,215.31
  6. Step 6: Final answer
    x = 373,786.49

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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.