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Finding the Fourth Proportional to 435.91, 653.71 and 162.00

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Solution

The fourth proportional to 435.91, 653.71 and 162.00 is: 242.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.91 : 653.71 = 162.00 : x
  2. Step 2: Convert to fraction form
    435.91/653.71 = 162.00/x
  3. Step 3: Cross multiply
    435.91x = 653.71 × 162.00
  4. Step 4: Simplify right side
    435.91x = 105,897.75
  5. Step 5: Solve for x
    x = 105,897.75/435.91
  6. Step 6: Final answer
    x = 242.93

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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.