Home / 211,366.28-291,715.26-130,819.64

Finding the Fourth Proportional to 211,366.28, 291,715.26 and 130,819.64

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Solution

The fourth proportional to 211,366.28, 291,715.26 and 130,819.64 is: 180,549.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,366.28 : 291,715.26 = 130,819.64 : x
  2. Step 2: Convert to fraction form
    211,366.28/291,715.26 = 130,819.64/x
  3. Step 3: Cross multiply
    211,366.28x = 291,715.26 × 130,819.64
  4. Step 4: Simplify right side
    211,366.28x = 38,162,085,295.71
  5. Step 5: Solve for x
    x = 38,162,085,295.71/211,366.28
  6. Step 6: Final answer
    x = 180,549.54

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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.