Home / 235,741.20-353,611.80-209,936.40

Finding the Fourth Proportional to 235,741.20, 353,611.80 and 209,936.40

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Solution

The fourth proportional to 235,741.20, 353,611.80 and 209,936.40 is: 314,904.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,741.20 : 353,611.80 = 209,936.40 : x
  2. Step 2: Convert to fraction form
    235,741.20/353,611.80 = 209,936.40/x
  3. Step 3: Cross multiply
    235,741.20x = 353,611.80 × 209,936.40
  4. Step 4: Simplify right side
    235,741.20x = 74,235,988,289.52
  5. Step 5: Solve for x
    x = 74,235,988,289.52/235,741.20
  6. Step 6: Final answer
    x = 314,904.60

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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.