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Finding the Fourth Proportional to 362,864.20, 543,640.20 and 310,376.20

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Solution

The fourth proportional to 362,864.20, 543,640.20 and 310,376.20 is: 465,003.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,864.20 : 543,640.20 = 310,376.20 : x
  2. Step 2: Convert to fraction form
    362,864.20/543,640.20 = 310,376.20/x
  3. Step 3: Cross multiply
    362,864.20x = 543,640.20 × 310,376.20
  4. Step 4: Simplify right side
    362,864.20x = 168,732,979,443.24
  5. Step 5: Solve for x
    x = 168,732,979,443.24/362,864.20
  6. Step 6: Final answer
    x = 465,003.10

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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.