Home / 287,150.82-430,822.14-127,205.04

Finding the Fourth Proportional to 287,150.82, 430,822.14 and 127,205.04

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Solution

The fourth proportional to 287,150.82, 430,822.14 and 127,205.04 is: 190,850.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,150.82 : 430,822.14 = 127,205.04 : x
  2. Step 2: Convert to fraction form
    287,150.82/430,822.14 = 127,205.04/x
  3. Step 3: Cross multiply
    287,150.82x = 430,822.14 × 127,205.04
  4. Step 4: Simplify right side
    287,150.82x = 54,802,747,551.59
  5. Step 5: Solve for x
    x = 54,802,747,551.59/287,150.82
  6. Step 6: Final answer
    x = 190,850.05

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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.