Home / 358,305.90-494,420.67-245,294.70

Finding the Fourth Proportional to 358,305.90, 494,420.67 and 245,294.70

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Solution

The fourth proportional to 358,305.90, 494,420.67 and 245,294.70 is: 338,478.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,305.90 : 494,420.67 = 245,294.70 : x
  2. Step 2: Convert to fraction form
    358,305.90/494,420.67 = 245,294.70/x
  3. Step 3: Cross multiply
    358,305.90x = 494,420.67 × 245,294.70
  4. Step 4: Simplify right side
    358,305.90x = 121,278,769,921.45
  5. Step 5: Solve for x
    x = 121,278,769,921.45/358,305.90
  6. Step 6: Final answer
    x = 338,478.29

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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.