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Finding the Third Proportional to 284.77 and 430.00

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Solution

The third proportional to 284.77 and 430.00 is: 649.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    284.77 : 430.00 = 430.00 : x
  2. Step 2: Convert to fraction form
    284.77/430.00 = 430.00/x
  3. Step 3: Cross multiply
    284.77x = 430.00 × 430.00
  4. Step 4: Simplify right side
    284.77x = 184,896.64
  5. Step 5: Solve for x
    x = 184,896.64/284.77
  6. Step 6: Final answer
    x = 649.29

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.