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Finding the Fourth Proportional to 432,099.01, 647,280.39 and 215,303.84

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Solution

The fourth proportional to 432,099.01, 647,280.39 and 215,303.84 is: 322,523.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,099.01 : 647,280.39 = 215,303.84 : x
  2. Step 2: Convert to fraction form
    432,099.01/647,280.39 = 215,303.84/x
  3. Step 3: Cross multiply
    432,099.01x = 647,280.39 × 215,303.84
  4. Step 4: Simplify right side
    432,099.01x = 139,361,950,287.30
  5. Step 5: Solve for x
    x = 139,361,950,287.30/432,099.01
  6. Step 6: Final answer
    x = 322,523.19

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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.