Home / 211,528.20-291,828.42-135,050.20

Finding the Fourth Proportional to 211,528.20, 291,828.42 and 135,050.20

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Solution

The fourth proportional to 211,528.20, 291,828.42 and 135,050.20 is: 186,317.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,528.20 : 291,828.42 = 135,050.20 : x
  2. Step 2: Convert to fraction form
    211,528.20/291,828.42 = 135,050.20/x
  3. Step 3: Cross multiply
    211,528.20x = 291,828.42 × 135,050.20
  4. Step 4: Simplify right side
    211,528.20x = 39,411,486,486.68
  5. Step 5: Solve for x
    x = 39,411,486,486.68/211,528.20
  6. Step 6: Final answer
    x = 186,317.88

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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.