Home / 228,905.10-343,357.65-191,507.40

Finding the Fourth Proportional to 228,905.10, 343,357.65 and 191,507.40

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Solution

The fourth proportional to 228,905.10, 343,357.65 and 191,507.40 is: 287,261.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,905.10 : 343,357.65 = 191,507.40 : x
  2. Step 2: Convert to fraction form
    228,905.10/343,357.65 = 191,507.40/x
  3. Step 3: Cross multiply
    228,905.10x = 343,357.65 × 191,507.40
  4. Step 4: Simplify right side
    228,905.10x = 65,755,530,821.61
  5. Step 5: Solve for x
    x = 65,755,530,821.61/228,905.10
  6. Step 6: Final answer
    x = 287,261.10

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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.