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Finding the Fourth Proportional to 318,409.62, 439,401.65 and 237,101.58

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Solution

The fourth proportional to 318,409.62, 439,401.65 and 237,101.58 is: 327,197.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,409.62 : 439,401.65 = 237,101.58 : x
  2. Step 2: Convert to fraction form
    318,409.62/439,401.65 = 237,101.58/x
  3. Step 3: Cross multiply
    318,409.62x = 439,401.65 × 237,101.58
  4. Step 4: Simplify right side
    318,409.62x = 104,182,824,284.10
  5. Step 5: Solve for x
    x = 104,182,824,284.10/318,409.62
  6. Step 6: Final answer
    x = 327,197.48

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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.