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Finding the Fourth Proportional to 217,326.98, 300,056.84 and 135,779.37

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Solution

The fourth proportional to 217,326.98, 300,056.84 and 135,779.37 is: 187,466.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,326.98 : 300,056.84 = 135,779.37 : x
  2. Step 2: Convert to fraction form
    217,326.98/300,056.84 = 135,779.37/x
  3. Step 3: Cross multiply
    217,326.98x = 300,056.84 × 135,779.37
  4. Step 4: Simplify right side
    217,326.98x = 40,741,528,699.39
  5. Step 5: Solve for x
    x = 40,741,528,699.39/217,326.98
  6. Step 6: Final answer
    x = 187,466.50

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1.5x scale

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.