Home / 291,767.13-402,088.86-211,057.65

Finding the Fourth Proportional to 291,767.13, 402,088.86 and 211,057.65

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Solution

The fourth proportional to 291,767.13, 402,088.86 and 211,057.65 is: 290,861.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,767.13 : 402,088.86 = 211,057.65 : x
  2. Step 2: Convert to fraction form
    291,767.13/402,088.86 = 211,057.65/x
  3. Step 3: Cross multiply
    291,767.13x = 402,088.86 × 211,057.65
  4. Step 4: Simplify right side
    291,767.13x = 84,863,929,882.78
  5. Step 5: Solve for x
    x = 84,863,929,882.78/291,767.13
  6. Step 6: Final answer
    x = 290,861.86

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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.