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Finding the Fourth Proportional to 303,865.83, 455,897.16 and 146,073.78

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Solution

The fourth proportional to 303,865.83, 455,897.16 and 146,073.78 is: 219,157.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,865.83 : 455,897.16 = 146,073.78 : x
  2. Step 2: Convert to fraction form
    303,865.83/455,897.16 = 146,073.78/x
  3. Step 3: Cross multiply
    303,865.83x = 455,897.16 × 146,073.78
  4. Step 4: Simplify right side
    303,865.83x = 66,594,621,452.46
  5. Step 5: Solve for x
    x = 66,594,621,452.46/303,865.83
  6. Step 6: Final answer
    x = 219,157.98

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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.