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Finding the Fourth Proportional to 293,701.80, 440,552.70 and 289,765.20

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Solution

The fourth proportional to 293,701.80, 440,552.70 and 289,765.20 is: 434,647.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,701.80 : 440,552.70 = 289,765.20 : x
  2. Step 2: Convert to fraction form
    293,701.80/440,552.70 = 289,765.20/x
  3. Step 3: Cross multiply
    293,701.80x = 440,552.70 × 289,765.20
  4. Step 4: Simplify right side
    293,701.80x = 127,656,841,226.04
  5. Step 5: Solve for x
    x = 127,656,841,226.04/293,701.80
  6. Step 6: Final answer
    x = 434,647.80

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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.