Home / 223,213.05-307,865.21-155,195.96

Finding the Fourth Proportional to 223,213.05, 307,865.21 and 155,195.96

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Solution

The fourth proportional to 223,213.05, 307,865.21 and 155,195.96 is: 214,053.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,213.05 : 307,865.21 = 155,195.96 : x
  2. Step 2: Convert to fraction form
    223,213.05/307,865.21 = 155,195.96/x
  3. Step 3: Cross multiply
    223,213.05x = 307,865.21 × 155,195.96
  4. Step 4: Simplify right side
    223,213.05x = 47,779,434,501.25
  5. Step 5: Solve for x
    x = 47,779,434,501.25/223,213.05
  6. Step 6: Final answer
    x = 214,053.05

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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.