Home / 331,938.02-498,008.50-139,911.87

Finding the Fourth Proportional to 331,938.02, 498,008.50 and 139,911.87

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Solution

The fourth proportional to 331,938.02, 498,008.50 and 139,911.87 is: 209,910.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,938.02 : 498,008.50 = 139,911.87 : x
  2. Step 2: Convert to fraction form
    331,938.02/498,008.50 = 139,911.87/x
  3. Step 3: Cross multiply
    331,938.02x = 498,008.50 × 139,911.87
  4. Step 4: Simplify right side
    331,938.02x = 69,677,302,815.65
  5. Step 5: Solve for x
    x = 69,677,302,815.65/331,938.02
  6. Step 6: Final answer
    x = 209,910.58

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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.