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Finding the Fourth Proportional to 331,325.40, 457,232.94 and 180,422.40

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Solution

The fourth proportional to 331,325.40, 457,232.94 and 180,422.40 is: 248,985.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,325.40 : 457,232.94 = 180,422.40 : x
  2. Step 2: Convert to fraction form
    331,325.40/457,232.94 = 180,422.40/x
  3. Step 3: Cross multiply
    331,325.40x = 457,232.94 × 180,422.40
  4. Step 4: Simplify right side
    331,325.40x = 82,495,064,393.86
  5. Step 5: Solve for x
    x = 82,495,064,393.86/331,325.40
  6. Step 6: Final answer
    x = 248,985.03

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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.