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Finding the Fourth Proportional to 217,196.97, 299,554.11 and 152,879.12

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Solution

The fourth proportional to 217,196.97, 299,554.11 and 152,879.12 is: 210,848.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,196.97 : 299,554.11 = 152,879.12 : x
  2. Step 2: Convert to fraction form
    217,196.97/299,554.11 = 152,879.12/x
  3. Step 3: Cross multiply
    217,196.97x = 299,554.11 × 152,879.12
  4. Step 4: Simplify right side
    217,196.97x = 45,795,569,478.07
  5. Step 5: Solve for x
    x = 45,795,569,478.07/217,196.97
  6. Step 6: Final answer
    x = 210,848.10

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1.5x scale

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.