Home / 231,649.38-346,907.88-209,210.76

Finding the Fourth Proportional to 231,649.38, 346,907.88 and 209,210.76

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Solution

The fourth proportional to 231,649.38, 346,907.88 and 209,210.76 is: 313,304.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,649.38 : 346,907.88 = 209,210.76 : x
  2. Step 2: Convert to fraction form
    231,649.38/346,907.88 = 209,210.76/x
  3. Step 3: Cross multiply
    231,649.38x = 346,907.88 × 209,210.76
  4. Step 4: Simplify right side
    231,649.38x = 72,576,861,224.79
  5. Step 5: Solve for x
    x = 72,576,861,224.79/231,649.38
  6. Step 6: Final answer
    x = 313,304.79

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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.