Home / 243,043.20-364,564.80-198,756.45

Finding the Fourth Proportional to 243,043.20, 364,564.80 and 198,756.45

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Solution

The fourth proportional to 243,043.20, 364,564.80 and 198,756.45 is: 298,134.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,043.20 : 364,564.80 = 198,756.45 : x
  2. Step 2: Convert to fraction form
    243,043.20/364,564.80 = 198,756.45/x
  3. Step 3: Cross multiply
    243,043.20x = 364,564.80 × 198,756.45
  4. Step 4: Simplify right side
    243,043.20x = 72,459,605,442.96
  5. Step 5: Solve for x
    x = 72,459,605,442.96/243,043.20
  6. Step 6: Final answer
    x = 298,134.68

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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.