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Finding the Fourth Proportional to 330,501.96, 495,664.38 and 143,469

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Solution

The fourth proportional to 330,501.96, 495,664.38 and 143,469 is: 215,165.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,501.96 : 495,664.38 = 143,469 : x
  2. Step 2: Convert to fraction form
    330,501.96/495,664.38 = 143,469/x
  3. Step 3: Cross multiply
    330,501.96x = 495,664.38 × 143,469
  4. Step 4: Simplify right side
    330,501.96x = 71,112,472,934.22
  5. Step 5: Solve for x
    x = 71,112,472,934.22/330,501.96
  6. Step 6: Final answer
    x = 215,165.06

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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.