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Finding the Fourth Proportional to 331,012.40, 495,534.45 and 331,012.40

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Solution

The fourth proportional to 331,012.40, 495,534.45 and 331,012.40 is: 495,534.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,012.40 : 495,534.45 = 331,012.40 : x
  2. Step 2: Convert to fraction form
    331,012.40/495,534.45 = 331,012.40/x
  3. Step 3: Cross multiply
    331,012.40x = 495,534.45 × 331,012.40
  4. Step 4: Simplify right side
    331,012.40x = 164,028,047,577.18
  5. Step 5: Solve for x
    x = 164,028,047,577.18/331,012.40
  6. Step 6: Final answer
    x = 495,534.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.