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Finding the Fourth Proportional to 201,205.80, 301,808.70 and 60,971.40

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Solution

The fourth proportional to 201,205.80, 301,808.70 and 60,971.40 is: 91,457.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,205.80 : 301,808.70 = 60,971.40 : x
  2. Step 2: Convert to fraction form
    201,205.80/301,808.70 = 60,971.40/x
  3. Step 3: Cross multiply
    201,205.80x = 301,808.70 × 60,971.40
  4. Step 4: Simplify right side
    201,205.80x = 18,401,698,971.18
  5. Step 5: Solve for x
    x = 18,401,698,971.18/201,205.80
  6. Step 6: Final answer
    x = 91,457.10

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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.