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Finding the Fourth Proportional to 535,812.40, 803,426.60 and 161,786.80

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Solution

The fourth proportional to 535,812.40, 803,426.60 and 161,786.80 is: 242,592.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,812.40 : 803,426.60 = 161,786.80 : x
  2. Step 2: Convert to fraction form
    535,812.40/803,426.60 = 161,786.80/x
  3. Step 3: Cross multiply
    535,812.40x = 803,426.60 × 161,786.80
  4. Step 4: Simplify right side
    535,812.40x = 129,983,818,648.88
  5. Step 5: Solve for x
    x = 129,983,818,648.88/535,812.40
  6. Step 6: Final answer
    x = 242,592.03

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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.