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Finding the Fourth Proportional to 296,957, 445,223.88 and 139,099.34

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Solution

The fourth proportional to 296,957, 445,223.88 and 139,099.34 is: 208,549.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,957 : 445,223.88 = 139,099.34 : x
  2. Step 2: Convert to fraction form
    296,957/445,223.88 = 139,099.34/x
  3. Step 3: Cross multiply
    296,957x = 445,223.88 × 139,099.34
  4. Step 4: Simplify right side
    296,957x = 61,930,347,860.24
  5. Step 5: Solve for x
    x = 61,930,347,860.24/296,957
  6. Step 6: Final answer
    x = 208,549.88

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1.5x scale

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.