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Finding the Fourth Proportional to 331,392.54, 457,321.68 and 180,489.54

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Solution

The fourth proportional to 331,392.54, 457,321.68 and 180,489.54 is: 249,075.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,392.54 : 457,321.68 = 180,489.54 : x
  2. Step 2: Convert to fraction form
    331,392.54/457,321.68 = 180,489.54/x
  3. Step 3: Cross multiply
    331,392.54x = 457,321.68 × 180,489.54
  4. Step 4: Simplify right side
    331,392.54x = 82,541,779,655.23
  5. Step 5: Solve for x
    x = 82,541,779,655.23/331,392.54
  6. Step 6: Final answer
    x = 249,075.55

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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.