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Finding the Fourth Proportional to 314,943.80, 472,415.70 and 302,696.60

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Solution

The fourth proportional to 314,943.80, 472,415.70 and 302,696.60 is: 454,044.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,943.80 : 472,415.70 = 302,696.60 : x
  2. Step 2: Convert to fraction form
    314,943.80/472,415.70 = 302,696.60/x
  3. Step 3: Cross multiply
    314,943.80x = 472,415.70 × 302,696.60
  4. Step 4: Simplify right side
    314,943.80x = 142,998,626,176.62
  5. Step 5: Solve for x
    x = 142,998,626,176.62/314,943.80
  6. Step 6: Final answer
    x = 454,044.90

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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.