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Finding the Fourth Proportional to 358,191.86, 493,901.17 and 276,333.80

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Solution

The fourth proportional to 358,191.86, 493,901.17 and 276,333.80 is: 381,029.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,191.86 : 493,901.17 = 276,333.80 : x
  2. Step 2: Convert to fraction form
    358,191.86/493,901.17 = 276,333.80/x
  3. Step 3: Cross multiply
    358,191.86x = 493,901.17 × 276,333.80
  4. Step 4: Simplify right side
    358,191.86x = 136,481,583,970.21
  5. Step 5: Solve for x
    x = 136,481,583,970.21/358,191.86
  6. Step 6: Final answer
    x = 381,029.28

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1.5x scale

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.