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Finding the Fourth Proportional to 499,149.64, 748,424.78 and 228,939.30

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Solution

The fourth proportional to 499,149.64, 748,424.78 and 228,939.30 is: 343,271.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,149.64 : 748,424.78 = 228,939.30 : x
  2. Step 2: Convert to fraction form
    499,149.64/748,424.78 = 228,939.30/x
  3. Step 3: Cross multiply
    499,149.64x = 748,424.78 × 228,939.30
  4. Step 4: Simplify right side
    499,149.64x = 171,343,844,091.16
  5. Step 5: Solve for x
    x = 171,343,844,091.16/499,149.64
  6. Step 6: Final answer
    x = 343,271.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.