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Finding the Fourth Proportional to 362,409.20, 543,613.80 and 303,360.20

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Solution

The fourth proportional to 362,409.20, 543,613.80 and 303,360.20 is: 455,040.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,409.20 : 543,613.80 = 303,360.20 : x
  2. Step 2: Convert to fraction form
    362,409.20/543,613.80 = 303,360.20/x
  3. Step 3: Cross multiply
    362,409.20x = 543,613.80 × 303,360.20
  4. Step 4: Simplify right side
    362,409.20x = 164,910,791,090.76
  5. Step 5: Solve for x
    x = 164,910,791,090.76/362,409.20
  6. Step 6: Final answer
    x = 455,040.30

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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.