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Finding the Fourth Proportional to 340,068.40, 510,102.60 and 303,326.80

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Solution

The fourth proportional to 340,068.40, 510,102.60 and 303,326.80 is: 454,990.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,068.40 : 510,102.60 = 303,326.80 : x
  2. Step 2: Convert to fraction form
    340,068.40/510,102.60 = 303,326.80/x
  3. Step 3: Cross multiply
    340,068.40x = 510,102.60 × 303,326.80
  4. Step 4: Simplify right side
    340,068.40x = 154,727,789,329.68
  5. Step 5: Solve for x
    x = 154,727,789,329.68/340,068.40
  6. Step 6: Final answer
    x = 454,990.20

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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.