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Finding the Fourth Proportional to 484,985.70, 727,478.55 and 169,401.60

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Solution

The fourth proportional to 484,985.70, 727,478.55 and 169,401.60 is: 254,102.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,985.70 : 727,478.55 = 169,401.60 : x
  2. Step 2: Convert to fraction form
    484,985.70/727,478.55 = 169,401.60/x
  3. Step 3: Cross multiply
    484,985.70x = 727,478.55 × 169,401.60
  4. Step 4: Simplify right side
    484,985.70x = 123,236,030,335.68
  5. Step 5: Solve for x
    x = 123,236,030,335.68/484,985.70
  6. Step 6: Final answer
    x = 254,102.40

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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.