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Finding the Fourth Proportional to 295,601.80, 443,402.70 and 290,936.20

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Solution

The fourth proportional to 295,601.80, 443,402.70 and 290,936.20 is: 436,404.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,601.80 : 443,402.70 = 290,936.20 : x
  2. Step 2: Convert to fraction form
    295,601.80/443,402.70 = 290,936.20/x
  3. Step 3: Cross multiply
    295,601.80x = 443,402.70 × 290,936.20
  4. Step 4: Simplify right side
    295,601.80x = 129,001,896,607.74
  5. Step 5: Solve for x
    x = 129,001,896,607.74/295,601.80
  6. Step 6: Final answer
    x = 436,404.30

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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.