Home / 260,091.10-390,136.65-201,042.10

Finding the Fourth Proportional to 260,091.10, 390,136.65 and 201,042.10

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Solution

The fourth proportional to 260,091.10, 390,136.65 and 201,042.10 is: 301,563.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,091.10 : 390,136.65 = 201,042.10 : x
  2. Step 2: Convert to fraction form
    260,091.10/390,136.65 = 201,042.10/x
  3. Step 3: Cross multiply
    260,091.10x = 390,136.65 × 201,042.10
  4. Step 4: Simplify right side
    260,091.10x = 78,433,891,402.97
  5. Step 5: Solve for x
    x = 78,433,891,402.97/260,091.10
  6. Step 6: Final answer
    x = 301,563.15

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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.