Home / 211,257.71-291,365.85-185,709.69

Finding the Fourth Proportional to 211,257.71, 291,365.85 and 185,709.69

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Solution

The fourth proportional to 211,257.71, 291,365.85 and 185,709.69 is: 256,130.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,257.71 : 291,365.85 = 185,709.69 : x
  2. Step 2: Convert to fraction form
    211,257.71/291,365.85 = 185,709.69/x
  3. Step 3: Cross multiply
    211,257.71x = 291,365.85 × 185,709.69
  4. Step 4: Simplify right side
    211,257.71x = 54,109,461,680.09
  5. Step 5: Solve for x
    x = 54,109,461,680.09/211,257.71
  6. Step 6: Final answer
    x = 256,130.12

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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.