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Finding the Fourth Proportional to 172,549.28, 258,835.08 and 54,225.56

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Solution

The fourth proportional to 172,549.28, 258,835.08 and 54,225.56 is: 81,341.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,549.28 : 258,835.08 = 54,225.56 : x
  2. Step 2: Convert to fraction form
    172,549.28/258,835.08 = 54,225.56/x
  3. Step 3: Cross multiply
    172,549.28x = 258,835.08 × 54,225.56
  4. Step 4: Simplify right side
    172,549.28x = 14,035,477,160.64
  5. Step 5: Solve for x
    x = 14,035,477,160.64/172,549.28
  6. Step 6: Final answer
    x = 81,341.85

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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.