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Finding the Fourth Proportional to 362,901.80, 543,315.90 and 321,429.80

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Solution

The fourth proportional to 362,901.80, 543,315.90 and 321,429.80 is: 481,226.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,901.80 : 543,315.90 = 321,429.80 : x
  2. Step 2: Convert to fraction form
    362,901.80/543,315.90 = 321,429.80/x
  3. Step 3: Cross multiply
    362,901.80x = 543,315.90 × 321,429.80
  4. Step 4: Simplify right side
    362,901.80x = 174,637,921,073.82
  5. Step 5: Solve for x
    x = 174,637,921,073.82/362,901.80
  6. Step 6: Final answer
    x = 481,226.38

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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.