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Finding the Fourth Proportional to 318,159.28, 439,048.51 and 174,918.21

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Solution

The fourth proportional to 318,159.28, 439,048.51 and 174,918.21 is: 241,380.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,159.28 : 439,048.51 = 174,918.21 : x
  2. Step 2: Convert to fraction form
    318,159.28/439,048.51 = 174,918.21/x
  3. Step 3: Cross multiply
    318,159.28x = 439,048.51 × 174,918.21
  4. Step 4: Simplify right side
    318,159.28x = 76,797,579,472.37
  5. Step 5: Solve for x
    x = 76,797,579,472.37/318,159.28
  6. Step 6: Final answer
    x = 241,380.92

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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.