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Finding the Fourth Proportional to 356,880.40, 534,802.20 and 304,003.60

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Solution

The fourth proportional to 356,880.40, 534,802.20 and 304,003.60 is: 455,563.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,880.40 : 534,802.20 = 304,003.60 : x
  2. Step 2: Convert to fraction form
    356,880.40/534,802.20 = 304,003.60/x
  3. Step 3: Cross multiply
    356,880.40x = 534,802.20 × 304,003.60
  4. Step 4: Simplify right side
    356,880.40x = 162,581,794,087.92
  5. Step 5: Solve for x
    x = 162,581,794,087.92/356,880.40
  6. Step 6: Final answer
    x = 455,563.81

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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.