Home / 229,205.10-343,807.65-209,505.90

Finding the Fourth Proportional to 229,205.10, 343,807.65 and 209,505.90

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Solution

The fourth proportional to 229,205.10, 343,807.65 and 209,505.90 is: 314,258.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,205.10 : 343,807.65 = 209,505.90 : x
  2. Step 2: Convert to fraction form
    229,205.10/343,807.65 = 209,505.90/x
  3. Step 3: Cross multiply
    229,205.10x = 343,807.65 × 209,505.90
  4. Step 4: Simplify right side
    229,205.10x = 72,029,731,140.14
  5. Step 5: Solve for x
    x = 72,029,731,140.14/229,205.10
  6. Step 6: Final answer
    x = 314,258.85

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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.