Home / 211,038.75-291,240.90-115,546.23

Finding the Fourth Proportional to 211,038.75, 291,240.90 and 115,546.23

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Solution

The fourth proportional to 211,038.75, 291,240.90 and 115,546.23 is: 159,457.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,038.75 : 291,240.90 = 115,546.23 : x
  2. Step 2: Convert to fraction form
    211,038.75/291,240.90 = 115,546.23/x
  3. Step 3: Cross multiply
    211,038.75x = 291,240.90 × 115,546.23
  4. Step 4: Simplify right side
    211,038.75x = 33,651,788,016.81
  5. Step 5: Solve for x
    x = 33,651,788,016.81/211,038.75
  6. Step 6: Final answer
    x = 159,457.86

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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.