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Finding the Fourth Proportional to 243,820.96, 336,466.72 and 136,395.52

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Solution

The fourth proportional to 243,820.96, 336,466.72 and 136,395.52 is: 188,222.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,820.96 : 336,466.72 = 136,395.52 : x
  2. Step 2: Convert to fraction form
    243,820.96/336,466.72 = 136,395.52/x
  3. Step 3: Cross multiply
    243,820.96x = 336,466.72 × 136,395.52
  4. Step 4: Simplify right side
    243,820.96x = 45,892,553,237.09
  5. Step 5: Solve for x
    x = 45,892,553,237.09/243,820.96
  6. Step 6: Final answer
    x = 188,222.35

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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.