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Finding the Fourth Proportional to 535,420.10, 803,166.60 and 170,652.80

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Solution

The fourth proportional to 535,420.10, 803,166.60 and 170,652.80 is: 255,990.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,420.10 : 803,166.60 = 170,652.80 : x
  2. Step 2: Convert to fraction form
    535,420.10/803,166.60 = 170,652.80/x
  3. Step 3: Cross multiply
    535,420.10x = 803,166.60 × 170,652.80
  4. Step 4: Simplify right side
    535,420.10x = 137,062,629,156.48
  5. Step 5: Solve for x
    x = 137,062,629,156.48/535,420.10
  6. Step 6: Final answer
    x = 255,990.82

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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.