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Finding the Fourth Proportional to 201,219.80, 301,829.70 and 60,985.40

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Solution

The fourth proportional to 201,219.80, 301,829.70 and 60,985.40 is: 91,478.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,219.80 : 301,829.70 = 60,985.40 : x
  2. Step 2: Convert to fraction form
    201,219.80/301,829.70 = 60,985.40/x
  3. Step 3: Cross multiply
    201,219.80x = 301,829.70 × 60,985.40
  4. Step 4: Simplify right side
    201,219.80x = 18,407,204,986.38
  5. Step 5: Solve for x
    x = 18,407,204,986.38/201,219.80
  6. Step 6: Final answer
    x = 91,478.10

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1.5x scale

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.