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Finding the Fourth Proportional to 211,486.60, 291,698.58 and 179,605

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Solution

The fourth proportional to 211,486.60, 291,698.58 and 179,605 is: 247,725.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,486.60 : 291,698.58 = 179,605 : x
  2. Step 2: Convert to fraction form
    211,486.60/291,698.58 = 179,605/x
  3. Step 3: Cross multiply
    211,486.60x = 291,698.58 × 179,605
  4. Step 4: Simplify right side
    211,486.60x = 52,390,523,460.90
  5. Step 5: Solve for x
    x = 52,390,523,460.90/211,486.60
  6. Step 6: Final answer
    x = 247,725.03

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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.