Home / 211,985.40-317,394.90-201,487.80

Finding the Fourth Proportional to 211,985.40, 317,394.90 and 201,487.80

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Solution

The fourth proportional to 211,985.40, 317,394.90 and 201,487.80 is: 301,677.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,985.40 : 317,394.90 = 201,487.80 : x
  2. Step 2: Convert to fraction form
    211,985.40/317,394.90 = 201,487.80/x
  3. Step 3: Cross multiply
    211,985.40x = 317,394.90 × 201,487.80
  4. Step 4: Simplify right side
    211,985.40x = 63,951,200,132.22
  5. Step 5: Solve for x
    x = 63,951,200,132.22/211,985.40
  6. Step 6: Final answer
    x = 301,677.38

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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.