Home / 209,437.52-311,787.33-208,191.95

Finding the Fourth Proportional to 209,437.52, 311,787.33 and 208,191.95

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Solution

The fourth proportional to 209,437.52, 311,787.33 and 208,191.95 is: 309,933.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,437.52 : 311,787.33 = 208,191.95 : x
  2. Step 2: Convert to fraction form
    209,437.52/311,787.33 = 208,191.95/x
  3. Step 3: Cross multiply
    209,437.52x = 311,787.33 × 208,191.95
  4. Step 4: Simplify right side
    209,437.52x = 64,911,610,659.06
  5. Step 5: Solve for x
    x = 64,911,610,659.06/209,437.52
  6. Step 6: Final answer
    x = 309,933.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.