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Finding the Fourth Proportional to 358,426.63, 494,628.87 and 197,280.52

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Solution

The fourth proportional to 358,426.63, 494,628.87 and 197,280.52 is: 272,247.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,426.63 : 494,628.87 = 197,280.52 : x
  2. Step 2: Convert to fraction form
    358,426.63/494,628.87 = 197,280.52/x
  3. Step 3: Cross multiply
    358,426.63x = 494,628.87 × 197,280.52
  4. Step 4: Simplify right side
    358,426.63x = 97,580,640,680.61
  5. Step 5: Solve for x
    x = 97,580,640,680.61/358,426.63
  6. Step 6: Final answer
    x = 272,247.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.