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Finding the Fourth Proportional to 172,827.06, 260,174.22 and 155,447.21

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Solution

The fourth proportional to 172,827.06, 260,174.22 and 155,447.21 is: 234,010.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,827.06 : 260,174.22 = 155,447.21 : x
  2. Step 2: Convert to fraction form
    172,827.06/260,174.22 = 155,447.21/x
  3. Step 3: Cross multiply
    172,827.06x = 260,174.22 × 155,447.21
  4. Step 4: Simplify right side
    172,827.06x = 40,443,355,312.06
  5. Step 5: Solve for x
    x = 40,443,355,312.06/172,827.06
  6. Step 6: Final answer
    x = 234,010.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.