Home / 305,416.20-459,108.45-217,280.10

Finding the Fourth Proportional to 305,416.20, 459,108.45 and 217,280.10

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Solution

The fourth proportional to 305,416.20, 459,108.45 and 217,280.10 is: 326,620.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,416.20 : 459,108.45 = 217,280.10 : x
  2. Step 2: Convert to fraction form
    305,416.20/459,108.45 = 217,280.10/x
  3. Step 3: Cross multiply
    305,416.20x = 459,108.45 × 217,280.10
  4. Step 4: Simplify right side
    305,416.20x = 99,755,129,926.85
  5. Step 5: Solve for x
    x = 99,755,129,926.85/305,416.20
  6. Step 6: Final answer
    x = 326,620.30

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1.5x scale

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.