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Finding the Fourth Proportional to 172,299.65, 258,415.41 and 163,755.20

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Solution

The fourth proportional to 172,299.65, 258,415.41 and 163,755.20 is: 245,600.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,299.65 : 258,415.41 = 163,755.20 : x
  2. Step 2: Convert to fraction form
    172,299.65/258,415.41 = 163,755.20/x
  3. Step 3: Cross multiply
    172,299.65x = 258,415.41 × 163,755.20
  4. Step 4: Simplify right side
    172,299.65x = 42,316,868,407.75
  5. Step 5: Solve for x
    x = 42,316,868,407.75/172,299.65
  6. Step 6: Final answer
    x = 245,600.43

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1.5x scale

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.