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Finding the Fourth Proportional to 535,571.46, 803,353.72 and 136,208.78

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Solution

The fourth proportional to 535,571.46, 803,353.72 and 136,208.78 is: 204,312.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,571.46 : 803,353.72 = 136,208.78 : x
  2. Step 2: Convert to fraction form
    535,571.46/803,353.72 = 136,208.78/x
  3. Step 3: Cross multiply
    535,571.46x = 803,353.72 × 136,208.78
  4. Step 4: Simplify right side
    535,571.46x = 109,423,831,662.86
  5. Step 5: Solve for x
    x = 109,423,831,662.86/535,571.46
  6. Step 6: Final answer
    x = 204,312.29

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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.