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Finding the Fourth Proportional to 355,363.86, 490,402.98 and 194,220.84

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Solution

The fourth proportional to 355,363.86, 490,402.98 and 194,220.84 is: 268,025.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,363.86 : 490,402.98 = 194,220.84 : x
  2. Step 2: Convert to fraction form
    355,363.86/490,402.98 = 194,220.84/x
  3. Step 3: Cross multiply
    355,363.86x = 490,402.98 × 194,220.84
  4. Step 4: Simplify right side
    355,363.86x = 95,246,478,714.10
  5. Step 5: Solve for x
    x = 95,246,478,714.10/355,363.86
  6. Step 6: Final answer
    x = 268,025.23

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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.