Home / 211,317.76-316,665.60-92,880.64

Finding the Fourth Proportional to 211,317.76, 316,665.60 and 92,880.64

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Solution

The fourth proportional to 211,317.76, 316,665.60 and 92,880.64 is: 139,184.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,317.76 : 316,665.60 = 92,880.64 : x
  2. Step 2: Convert to fraction form
    211,317.76/316,665.60 = 92,880.64/x
  3. Step 3: Cross multiply
    211,317.76x = 316,665.60 × 92,880.64
  4. Step 4: Simplify right side
    211,317.76x = 29,412,103,593.98
  5. Step 5: Solve for x
    x = 29,412,103,593.98/211,317.76
  6. Step 6: Final answer
    x = 139,184.25

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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.