Home / 358,534.32-494,930.40-255,235.20

Finding the Fourth Proportional to 358,534.32, 494,930.40 and 255,235.20

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Solution

The fourth proportional to 358,534.32, 494,930.40 and 255,235.20 is: 352,333.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,534.32 : 494,930.40 = 255,235.20 : x
  2. Step 2: Convert to fraction form
    358,534.32/494,930.40 = 255,235.20/x
  3. Step 3: Cross multiply
    358,534.32x = 494,930.40 × 255,235.20
  4. Step 4: Simplify right side
    358,534.32x = 126,323,659,630.08
  5. Step 5: Solve for x
    x = 126,323,659,630.08/358,534.32
  6. Step 6: Final answer
    x = 352,333.52

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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.