Home / 235,743.20-353,614.80-209,938.40

Finding the Fourth Proportional to 235,743.20, 353,614.80 and 209,938.40

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Solution

The fourth proportional to 235,743.20, 353,614.80 and 209,938.40 is: 314,907.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,743.20 : 353,614.80 = 209,938.40 : x
  2. Step 2: Convert to fraction form
    235,743.20/353,614.80 = 209,938.40/x
  3. Step 3: Cross multiply
    235,743.20x = 353,614.80 × 209,938.40
  4. Step 4: Simplify right side
    235,743.20x = 74,237,325,328.32
  5. Step 5: Solve for x
    x = 74,237,325,328.32/235,743.20
  6. Step 6: Final answer
    x = 314,907.60

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1.5x scale

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.