Home / 287,184.36-430,973.40-100,195.86

Finding the Fourth Proportional to 287,184.36, 430,973.40 and 100,195.86

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Solution

The fourth proportional to 287,184.36, 430,973.40 and 100,195.86 is: 150,362.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,184.36 : 430,973.40 = 100,195.86 : x
  2. Step 2: Convert to fraction form
    287,184.36/430,973.40 = 100,195.86/x
  3. Step 3: Cross multiply
    287,184.36x = 430,973.40 × 100,195.86
  4. Step 4: Simplify right side
    287,184.36x = 43,181,750,450.12
  5. Step 5: Solve for x
    x = 43,181,750,450.12/287,184.36
  6. Step 6: Final answer
    x = 150,362.47

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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.