Home / 211,039.19-291,222.54-115,527.41

Finding the Fourth Proportional to 211,039.19, 291,222.54 and 115,527.41

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Solution

The fourth proportional to 211,039.19, 291,222.54 and 115,527.41 is: 159,421.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,039.19 : 291,222.54 = 115,527.41 : x
  2. Step 2: Convert to fraction form
    211,039.19/291,222.54 = 115,527.41/x
  3. Step 3: Cross multiply
    211,039.19x = 291,222.54 × 115,527.41
  4. Step 4: Simplify right side
    211,039.19x = 33,644,185,779.82
  5. Step 5: Solve for x
    x = 33,644,185,779.82/211,039.19
  6. Step 6: Final answer
    x = 159,421.51

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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.