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Finding the Fourth Proportional to 293,537.80, 440,306.70 and 259,712.20

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Solution

The fourth proportional to 293,537.80, 440,306.70 and 259,712.20 is: 389,568.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,537.80 : 440,306.70 = 259,712.20 : x
  2. Step 2: Convert to fraction form
    293,537.80/440,306.70 = 259,712.20/x
  3. Step 3: Cross multiply
    293,537.80x = 440,306.70 × 259,712.20
  4. Step 4: Simplify right side
    293,537.80x = 114,353,021,731.74
  5. Step 5: Solve for x
    x = 114,353,021,731.74/293,537.80
  6. Step 6: Final answer
    x = 389,568.30

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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.