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Finding the Fourth Proportional to 302,880.40, 454,320.60 and 298,943.80

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Solution

The fourth proportional to 302,880.40, 454,320.60 and 298,943.80 is: 448,415.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,880.40 : 454,320.60 = 298,943.80 : x
  2. Step 2: Convert to fraction form
    302,880.40/454,320.60 = 298,943.80/x
  3. Step 3: Cross multiply
    302,880.40x = 454,320.60 × 298,943.80
  4. Step 4: Simplify right side
    302,880.40x = 135,816,326,582.28
  5. Step 5: Solve for x
    x = 135,816,326,582.28/302,880.40
  6. Step 6: Final answer
    x = 448,415.70

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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.