Home / 345,057.32-476,200.86-209,103.16

Finding the Fourth Proportional to 345,057.32, 476,200.86 and 209,103.16

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Solution

The fourth proportional to 345,057.32, 476,200.86 and 209,103.16 is: 288,575.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,057.32 : 476,200.86 = 209,103.16 : x
  2. Step 2: Convert to fraction form
    345,057.32/476,200.86 = 209,103.16/x
  3. Step 3: Cross multiply
    345,057.32x = 476,200.86 × 209,103.16
  4. Step 4: Simplify right side
    345,057.32x = 99,575,103,575.20
  5. Step 5: Solve for x
    x = 99,575,103,575.20/345,057.32
  6. Step 6: Final answer
    x = 288,575.54

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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.