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Finding the Fourth Proportional to 247,939.64, 342,156.69 and 147,337.64

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Solution

The fourth proportional to 247,939.64, 342,156.69 and 147,337.64 is: 203,325.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,939.64 : 342,156.69 = 147,337.64 : x
  2. Step 2: Convert to fraction form
    247,939.64/342,156.69 = 147,337.64/x
  3. Step 3: Cross multiply
    247,939.64x = 342,156.69 × 147,337.64
  4. Step 4: Simplify right side
    247,939.64x = 50,412,559,214.81
  5. Step 5: Solve for x
    x = 50,412,559,214.81/247,939.64
  6. Step 6: Final answer
    x = 203,325.94

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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.