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Finding the Fourth Proportional to 299,344, 448,527.60 and 139,246

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Solution

The fourth proportional to 299,344, 448,527.60 and 139,246 is: 208,641.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,344 : 448,527.60 = 139,246 : x
  2. Step 2: Convert to fraction form
    299,344/448,527.60 = 139,246/x
  3. Step 3: Cross multiply
    299,344x = 448,527.60 × 139,246
  4. Step 4: Simplify right side
    299,344x = 62,455,674,189.60
  5. Step 5: Solve for x
    x = 62,455,674,189.60/299,344
  6. Step 6: Final answer
    x = 208,641.81

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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.