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Finding the Fourth Proportional to 223,312.46, 308,173.07 and 121,337.92

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Solution

The fourth proportional to 223,312.46, 308,173.07 and 121,337.92 is: 167,447.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,312.46 : 308,173.07 = 121,337.92 : x
  2. Step 2: Convert to fraction form
    223,312.46/308,173.07 = 121,337.92/x
  3. Step 3: Cross multiply
    223,312.46x = 308,173.07 × 121,337.92
  4. Step 4: Simplify right side
    223,312.46x = 37,393,079,313.81
  5. Step 5: Solve for x
    x = 37,393,079,313.81/223,312.46
  6. Step 6: Final answer
    x = 167,447.35

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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.