Home / 211,028.34-291,208.05-115,516.74

Finding the Fourth Proportional to 211,028.34, 291,208.05 and 115,516.74

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Solution

The fourth proportional to 211,028.34, 291,208.05 and 115,516.74 is: 159,407.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,028.34 : 291,208.05 = 115,516.74 : x
  2. Step 2: Convert to fraction form
    211,028.34/291,208.05 = 115,516.74/x
  3. Step 3: Cross multiply
    211,028.34x = 291,208.05 × 115,516.74
  4. Step 4: Simplify right side
    211,028.34x = 33,639,404,597.76
  5. Step 5: Solve for x
    x = 33,639,404,597.76/211,028.34
  6. Step 6: Final answer
    x = 159,407.05

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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.