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Finding the Fourth Proportional to 408,500.28, 563,712.21 and 236,390.67

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Solution

The fourth proportional to 408,500.28, 563,712.21 and 236,390.67 is: 326,208.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,500.28 : 563,712.21 = 236,390.67 : x
  2. Step 2: Convert to fraction form
    408,500.28/563,712.21 = 236,390.67/x
  3. Step 3: Cross multiply
    408,500.28x = 563,712.21 × 236,390.67
  4. Step 4: Simplify right side
    408,500.28x = 133,256,307,009.08
  5. Step 5: Solve for x
    x = 133,256,307,009.08/408,500.28
  6. Step 6: Final answer
    x = 326,208.61

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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.