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Finding the Fourth Proportional to 299,270.09, 448,652.32 and 139,263.45

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Solution

The fourth proportional to 299,270.09, 448,652.32 and 139,263.45 is: 208,777.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,270.09 : 448,652.32 = 139,263.45 : x
  2. Step 2: Convert to fraction form
    299,270.09/448,652.32 = 139,263.45/x
  3. Step 3: Cross multiply
    299,270.09x = 448,652.32 × 139,263.45
  4. Step 4: Simplify right side
    299,270.09x = 62,480,870,426.77
  5. Step 5: Solve for x
    x = 62,480,870,426.77/299,270.09
  6. Step 6: Final answer
    x = 208,777.53

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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.