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Finding the Fourth Proportional to 243,927.81, 336,630.80 and 150,813.86

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Solution

The fourth proportional to 243,927.81, 336,630.80 and 150,813.86 is: 208,129.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,927.81 : 336,630.80 = 150,813.86 : x
  2. Step 2: Convert to fraction form
    243,927.81/336,630.80 = 150,813.86/x
  3. Step 3: Cross multiply
    243,927.81x = 336,630.80 × 150,813.86
  4. Step 4: Simplify right side
    243,927.81x = 50,768,589,036.77
  5. Step 5: Solve for x
    x = 50,768,589,036.77/243,927.81
  6. Step 6: Final answer
    x = 208,129.57

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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.