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Finding the Fourth Proportional to 435,676.60, 653,612.10 and 169,413.40

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Solution

The fourth proportional to 435,676.60, 653,612.10 and 169,413.40 is: 254,157.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,676.60 : 653,612.10 = 169,413.40 : x
  2. Step 2: Convert to fraction form
    435,676.60/653,612.10 = 169,413.40/x
  3. Step 3: Cross multiply
    435,676.60x = 653,612.10 × 169,413.40
  4. Step 4: Simplify right side
    435,676.60x = 110,730,648,142.14
  5. Step 5: Solve for x
    x = 110,730,648,142.14/435,676.60
  6. Step 6: Final answer
    x = 254,157.90

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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.