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Finding the Fourth Proportional to 299,155.02, 448,480.89 and 139,149.66

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Solution

The fourth proportional to 299,155.02, 448,480.89 and 139,149.66 is: 208,607.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,155.02 : 448,480.89 = 139,149.66 : x
  2. Step 2: Convert to fraction form
    299,155.02/448,480.89 = 139,149.66/x
  3. Step 3: Cross multiply
    299,155.02x = 448,480.89 × 139,149.66
  4. Step 4: Simplify right side
    299,155.02x = 62,405,963,360.00
  5. Step 5: Solve for x
    x = 62,405,963,360.00/299,155.02
  6. Step 6: Final answer
    x = 208,607.44

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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.