Home / 211,208.64-316,025.52-208,846.56

Finding the Fourth Proportional to 211,208.64, 316,025.52 and 208,846.56

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Solution

The fourth proportional to 211,208.64, 316,025.52 and 208,846.56 is: 312,491.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,208.64 : 316,025.52 = 208,846.56 : x
  2. Step 2: Convert to fraction form
    211,208.64/316,025.52 = 208,846.56/x
  3. Step 3: Cross multiply
    211,208.64x = 316,025.52 × 208,846.56
  4. Step 4: Simplify right side
    211,208.64x = 66,000,842,724.21
  5. Step 5: Solve for x
    x = 66,000,842,724.21/211,208.64
  6. Step 6: Final answer
    x = 312,491.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.