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Finding the Fourth Proportional to 340,028.40, 510,042.60 and 302,703.60

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Solution

The fourth proportional to 340,028.40, 510,042.60 and 302,703.60 is: 454,055.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,028.40 : 510,042.60 = 302,703.60 : x
  2. Step 2: Convert to fraction form
    340,028.40/510,042.60 = 302,703.60/x
  3. Step 3: Cross multiply
    340,028.40x = 510,042.60 × 302,703.60
  4. Step 4: Simplify right side
    340,028.40x = 154,391,731,173.36
  5. Step 5: Solve for x
    x = 154,391,731,173.36/340,028.40
  6. Step 6: Final answer
    x = 454,055.40

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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.