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Finding the Fourth Proportional to 274,289.80, 411,434.70 and 230,987.20

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Solution

The fourth proportional to 274,289.80, 411,434.70 and 230,987.20 is: 346,480.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,289.80 : 411,434.70 = 230,987.20 : x
  2. Step 2: Convert to fraction form
    274,289.80/411,434.70 = 230,987.20/x
  3. Step 3: Cross multiply
    274,289.80x = 411,434.70 × 230,987.20
  4. Step 4: Simplify right side
    274,289.80x = 95,036,149,335.84
  5. Step 5: Solve for x
    x = 95,036,149,335.84/274,289.80
  6. Step 6: Final answer
    x = 346,480.80

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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.