Home / 348,437.80-521,334.96-206,359.12

Finding the Fourth Proportional to 348,437.80, 521,334.96 and 206,359.12

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Solution

The fourth proportional to 348,437.80, 521,334.96 and 206,359.12 is: 308,755.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,437.80 : 521,334.96 = 206,359.12 : x
  2. Step 2: Convert to fraction form
    348,437.80/521,334.96 = 206,359.12/x
  3. Step 3: Cross multiply
    348,437.80x = 521,334.96 × 206,359.12
  4. Step 4: Simplify right side
    348,437.80x = 107,582,223,570.84
  5. Step 5: Solve for x
    x = 107,582,223,570.84/348,437.80
  6. Step 6: Final answer
    x = 308,755.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.