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Finding the Fourth Proportional to 358,431.80, 537,939.30 and 346,767.80

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Solution

The fourth proportional to 358,431.80, 537,939.30 and 346,767.80 is: 520,433.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,431.80 : 537,939.30 = 346,767.80 : x
  2. Step 2: Convert to fraction form
    358,431.80/537,939.30 = 346,767.80/x
  3. Step 3: Cross multiply
    358,431.80x = 537,939.30 × 346,767.80
  4. Step 4: Simplify right side
    358,431.80x = 186,540,027,594.54
  5. Step 5: Solve for x
    x = 186,540,027,594.54/358,431.80
  6. Step 6: Final answer
    x = 520,433.81

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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.