Home / 345,764.22-477,342.90-238,909.56

Finding the Fourth Proportional to 345,764.22, 477,342.90 and 238,909.56

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Solution

The fourth proportional to 345,764.22, 477,342.90 and 238,909.56 is: 329,825.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,764.22 : 477,342.90 = 238,909.56 : x
  2. Step 2: Convert to fraction form
    345,764.22/477,342.90 = 238,909.56/x
  3. Step 3: Cross multiply
    345,764.22x = 477,342.90 × 238,909.56
  4. Step 4: Simplify right side
    345,764.22x = 114,041,782,208.12
  5. Step 5: Solve for x
    x = 114,041,782,208.12/345,764.22
  6. Step 6: Final answer
    x = 329,825.28

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1.5x scale

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.