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Finding the Fourth Proportional to 434.73, 653 and 369.72

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Solution

The fourth proportional to 434.73, 653 and 369.72 is: 555.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    434.73 : 653 = 369.72 : x
  2. Step 2: Convert to fraction form
    434.73/653 = 369.72/x
  3. Step 3: Cross multiply
    434.73x = 653 × 369.72
  4. Step 4: Simplify right side
    434.73x = 241,427.16
  5. Step 5: Solve for x
    x = 241,427.16/434.73
  6. Step 6: Final answer
    x = 555.35

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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.