Home / 289,917.46-400,090.39-217,191.51

Finding the Fourth Proportional to 289,917.46, 400,090.39 and 217,191.51

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Solution

The fourth proportional to 289,917.46, 400,090.39 and 217,191.51 is: 299,727.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,917.46 : 400,090.39 = 217,191.51 : x
  2. Step 2: Convert to fraction form
    289,917.46/400,090.39 = 217,191.51/x
  3. Step 3: Cross multiply
    289,917.46x = 400,090.39 × 217,191.51
  4. Step 4: Simplify right side
    289,917.46x = 86,896,235,397.61
  5. Step 5: Solve for x
    x = 86,896,235,397.61/289,917.46
  6. Step 6: Final answer
    x = 299,727.50

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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.