Home / 318,420.33-439,451.13-237,707.69

Finding the Fourth Proportional to 318,420.33, 439,451.13 and 237,707.69

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Solution

The fourth proportional to 318,420.33, 439,451.13 and 237,707.69 is: 328,059.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,420.33 : 439,451.13 = 237,707.69 : x
  2. Step 2: Convert to fraction form
    318,420.33/439,451.13 = 237,707.69/x
  3. Step 3: Cross multiply
    318,420.33x = 439,451.13 × 237,707.69
  4. Step 4: Simplify right side
    318,420.33x = 104,460,910,782.93
  5. Step 5: Solve for x
    x = 104,460,910,782.93/318,420.33
  6. Step 6: Final answer
    x = 328,059.80

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1.5x scale

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.