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Finding the Fourth Proportional to 213,779.44, 320,659.96 and 56,004.40

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Solution

The fourth proportional to 213,779.44, 320,659.96 and 56,004.40 is: 84,004.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,779.44 : 320,659.96 = 56,004.40 : x
  2. Step 2: Convert to fraction form
    213,779.44/320,659.96 = 56,004.40/x
  3. Step 3: Cross multiply
    213,779.44x = 320,659.96 × 56,004.40
  4. Step 4: Simplify right side
    213,779.44x = 17,958,368,663.82
  5. Step 5: Solve for x
    x = 17,958,368,663.82/213,779.44
  6. Step 6: Final answer
    x = 84,004.19

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1.5x scale

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.