Home / 331,379.40-457,308.78-180,476.28

Finding the Fourth Proportional to 331,379.40, 457,308.78 and 180,476.28

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Solution

The fourth proportional to 331,379.40, 457,308.78 and 180,476.28 is: 249,060.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,379.40 : 457,308.78 = 180,476.28 : x
  2. Step 2: Convert to fraction form
    331,379.40/457,308.78 = 180,476.28/x
  3. Step 3: Cross multiply
    331,379.40x = 457,308.78 × 180,476.28
  4. Step 4: Simplify right side
    331,379.40x = 82,533,387,425.74
  5. Step 5: Solve for x
    x = 82,533,387,425.74/331,379.40
  6. Step 6: Final answer
    x = 249,060.10

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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.