Home / 210,922.92-291,072.96-115,430.40

Finding the Fourth Proportional to 210,922.92, 291,072.96 and 115,430.40

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Solution

The fourth proportional to 210,922.92, 291,072.96 and 115,430.40 is: 159,293.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,922.92 : 291,072.96 = 115,430.40 : x
  2. Step 2: Convert to fraction form
    210,922.92/291,072.96 = 115,430.40/x
  3. Step 3: Cross multiply
    210,922.92x = 291,072.96 × 115,430.40
  4. Step 4: Simplify right side
    210,922.92x = 33,598,668,201.98
  5. Step 5: Solve for x
    x = 33,598,668,201.98/210,922.92
  6. Step 6: Final answer
    x = 159,293.59

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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.