Home / 307,790.21-424,739.43-193,130.60

Finding the Fourth Proportional to 307,790.21, 424,739.43 and 193,130.60

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Solution

The fourth proportional to 307,790.21, 424,739.43 and 193,130.60 is: 266,513.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,790.21 : 424,739.43 = 193,130.60 : x
  2. Step 2: Convert to fraction form
    307,790.21/424,739.43 = 193,130.60/x
  3. Step 3: Cross multiply
    307,790.21x = 424,739.43 × 193,130.60
  4. Step 4: Simplify right side
    307,790.21x = 82,030,178,835.86
  5. Step 5: Solve for x
    x = 82,030,178,835.86/307,790.21
  6. Step 6: Final answer
    x = 266,513.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.