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Finding the Fourth Proportional to 242,889.21, 335,247.21 and 165,492.90

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Solution

The fourth proportional to 242,889.21, 335,247.21 and 165,492.90 is: 228,421.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,889.21 : 335,247.21 = 165,492.90 : x
  2. Step 2: Convert to fraction form
    242,889.21/335,247.21 = 165,492.90/x
  3. Step 3: Cross multiply
    242,889.21x = 335,247.21 × 165,492.90
  4. Step 4: Simplify right side
    242,889.21x = 55,481,032,999.81
  5. Step 5: Solve for x
    x = 55,481,032,999.81/242,889.21
  6. Step 6: Final answer
    x = 228,421.15

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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.