Home / 287,973.81-431,776.19-119,610.36

Finding the Fourth Proportional to 287,973.81, 431,776.19 and 119,610.36

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Solution

The fourth proportional to 287,973.81, 431,776.19 and 119,610.36 is: 179,338.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,973.81 : 431,776.19 = 119,610.36 : x
  2. Step 2: Convert to fraction form
    287,973.81/431,776.19 = 119,610.36/x
  3. Step 3: Cross multiply
    287,973.81x = 431,776.19 × 119,610.36
  4. Step 4: Simplify right side
    287,973.81x = 51,644,904,927.28
  5. Step 5: Solve for x
    x = 51,644,904,927.28/287,973.81
  6. Step 6: Final answer
    x = 179,338.90

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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.