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Finding the Fourth Proportional to 333,215.40, 499,385.70 and 133,372.20

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Solution

The fourth proportional to 333,215.40, 499,385.70 and 133,372.20 is: 199,883.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,215.40 : 499,385.70 = 133,372.20 : x
  2. Step 2: Convert to fraction form
    333,215.40/499,385.70 = 133,372.20/x
  3. Step 3: Cross multiply
    333,215.40x = 499,385.70 × 133,372.20
  4. Step 4: Simplify right side
    333,215.40x = 66,604,169,457.54
  5. Step 5: Solve for x
    x = 66,604,169,457.54/333,215.40
  6. Step 6: Final answer
    x = 199,883.23

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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.