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Finding the Fourth Proportional to 330,640.84, 495,774.48 and 302,428.52

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Solution

The fourth proportional to 330,640.84, 495,774.48 and 302,428.52 is: 453,471.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,640.84 : 495,774.48 = 302,428.52 : x
  2. Step 2: Convert to fraction form
    330,640.84/495,774.48 = 302,428.52/x
  3. Step 3: Cross multiply
    330,640.84x = 495,774.48 × 302,428.52
  4. Step 4: Simplify right side
    330,640.84x = 149,936,342,240.17
  5. Step 5: Solve for x
    x = 149,936,342,240.17/330,640.84
  6. Step 6: Final answer
    x = 453,471.94

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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.