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Finding the Fourth Proportional to 449,273.16, 620,126.28 and 265,681.80

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Solution

The fourth proportional to 449,273.16, 620,126.28 and 265,681.80 is: 366,717.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,273.16 : 620,126.28 = 265,681.80 : x
  2. Step 2: Convert to fraction form
    449,273.16/620,126.28 = 265,681.80/x
  3. Step 3: Cross multiply
    449,273.16x = 620,126.28 × 265,681.80
  4. Step 4: Simplify right side
    449,273.16x = 164,756,266,297.70
  5. Step 5: Solve for x
    x = 164,756,266,297.70/449,273.16
  6. Step 6: Final answer
    x = 366,717.36

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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.