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Finding the Fourth Proportional to 449,242.70, 619,950.18 and 245,292.98

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Solution

The fourth proportional to 449,242.70, 619,950.18 and 245,292.98 is: 338,501.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,242.70 : 619,950.18 = 245,292.98 : x
  2. Step 2: Convert to fraction form
    449,242.70/619,950.18 = 245,292.98/x
  3. Step 3: Cross multiply
    449,242.70x = 619,950.18 × 245,292.98
  4. Step 4: Simplify right side
    449,242.70x = 152,069,427,103.74
  5. Step 5: Solve for x
    x = 152,069,427,103.74/449,242.70
  6. Step 6: Final answer
    x = 338,501.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.