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Finding the Fourth Proportional to 243,311.45, 333,331.13 and 234,214.47

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Solution

The fourth proportional to 243,311.45, 333,331.13 and 234,214.47 is: 320,868.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,311.45 : 333,331.13 = 234,214.47 : x
  2. Step 2: Convert to fraction form
    243,311.45/333,331.13 = 234,214.47/x
  3. Step 3: Cross multiply
    243,311.45x = 333,331.13 × 234,214.47
  4. Step 4: Simplify right side
    243,311.45x = 78,070,974,532.99
  5. Step 5: Solve for x
    x = 78,070,974,532.99/243,311.45
  6. Step 6: Final answer
    x = 320,868.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.