Home / 211,217.42-291,480-126,354.44

Finding the Fourth Proportional to 211,217.42, 291,480 and 126,354.44

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Solution

The fourth proportional to 211,217.42, 291,480 and 126,354.44 is: 174,369.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,217.42 : 291,480 = 126,354.44 : x
  2. Step 2: Convert to fraction form
    211,217.42/291,480 = 126,354.44/x
  3. Step 3: Cross multiply
    211,217.42x = 291,480 × 126,354.44
  4. Step 4: Simplify right side
    211,217.42x = 36,829,792,171.20
  5. Step 5: Solve for x
    x = 36,829,792,171.20/211,217.42
  6. Step 6: Final answer
    x = 174,369.10

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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.