Home / 296,190.71-408,318.05-211,160.15

Finding the Fourth Proportional to 296,190.71, 408,318.05 and 211,160.15

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Solution

The fourth proportional to 296,190.71, 408,318.05 and 211,160.15 is: 291,097.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,190.71 : 408,318.05 = 211,160.15 : x
  2. Step 2: Convert to fraction form
    296,190.71/408,318.05 = 211,160.15/x
  3. Step 3: Cross multiply
    296,190.71x = 408,318.05 × 211,160.15
  4. Step 4: Simplify right side
    296,190.71x = 86,220,498,644.12
  5. Step 5: Solve for x
    x = 86,220,498,644.12/296,190.71
  6. Step 6: Final answer
    x = 291,097.92

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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.