Home / 235,903.20-353,336.40-209,637.60

Finding the Fourth Proportional to 235,903.20, 353,336.40 and 209,637.60

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Solution

The fourth proportional to 235,903.20, 353,336.40 and 209,637.60 is: 313,995.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,903.20 : 353,336.40 = 209,637.60 : x
  2. Step 2: Convert to fraction form
    235,903.20/353,336.40 = 209,637.60/x
  3. Step 3: Cross multiply
    235,903.20x = 353,336.40 × 209,637.60
  4. Step 4: Simplify right side
    235,903.20x = 74,072,594,888.64
  5. Step 5: Solve for x
    x = 74,072,594,888.64/235,903.20
  6. Step 6: Final answer
    x = 313,995.72

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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.