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Finding the Fourth Proportional to 436.06, 601.98 and 305.76

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Solution

The fourth proportional to 436.06, 601.98 and 305.76 is: 422.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.06 : 601.98 = 305.76 : x
  2. Step 2: Convert to fraction form
    436.06/601.98 = 305.76/x
  3. Step 3: Cross multiply
    436.06x = 601.98 × 305.76
  4. Step 4: Simplify right side
    436.06x = 184,061.40
  5. Step 5: Solve for x
    x = 184,061.40/436.06
  6. Step 6: Final answer
    x = 422.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.