Home / 217,985.39-300,821.44-119,870.36

Finding the Fourth Proportional to 217,985.39, 300,821.44 and 119,870.36

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Solution

The fourth proportional to 217,985.39, 300,821.44 and 119,870.36 is: 165,421.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,985.39 : 300,821.44 = 119,870.36 : x
  2. Step 2: Convert to fraction form
    217,985.39/300,821.44 = 119,870.36/x
  3. Step 3: Cross multiply
    217,985.39x = 300,821.44 × 119,870.36
  4. Step 4: Simplify right side
    217,985.39x = 36,059,572,804.41
  5. Step 5: Solve for x
    x = 36,059,572,804.41/217,985.39
  6. Step 6: Final answer
    x = 165,421.97

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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.