Home / 404,305.50-558,120.96-261,135.36

Finding the Fourth Proportional to 404,305.50, 558,120.96 and 261,135.36

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Solution

The fourth proportional to 404,305.50, 558,120.96 and 261,135.36 is: 360,482.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,305.50 : 558,120.96 = 261,135.36 : x
  2. Step 2: Convert to fraction form
    404,305.50/558,120.96 = 261,135.36/x
  3. Step 3: Cross multiply
    404,305.50x = 558,120.96 × 261,135.36
  4. Step 4: Simplify right side
    404,305.50x = 145,745,117,813.15
  5. Step 5: Solve for x
    x = 145,745,117,813.15/404,305.50
  6. Step 6: Final answer
    x = 360,482.65

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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.