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Finding the Fourth Proportional to 296,493.40, 445,614.90 and 258,002.20

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Solution

The fourth proportional to 296,493.40, 445,614.90 and 258,002.20 is: 387,764.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,493.40 : 445,614.90 = 258,002.20 : x
  2. Step 2: Convert to fraction form
    296,493.40/445,614.90 = 258,002.20/x
  3. Step 3: Cross multiply
    296,493.40x = 445,614.90 × 258,002.20
  4. Step 4: Simplify right side
    296,493.40x = 114,969,624,552.78
  5. Step 5: Solve for x
    x = 114,969,624,552.78/296,493.40
  6. Step 6: Final answer
    x = 387,764.53

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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.