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Finding the Fourth Proportional to 358,491.52, 494,686.24 and 197,344.80

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Solution

The fourth proportional to 358,491.52, 494,686.24 and 197,344.80 is: 272,318.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,491.52 : 494,686.24 = 197,344.80 : x
  2. Step 2: Convert to fraction form
    358,491.52/494,686.24 = 197,344.80/x
  3. Step 3: Cross multiply
    358,491.52x = 494,686.24 × 197,344.80
  4. Step 4: Simplify right side
    358,491.52x = 97,623,757,095.55
  5. Step 5: Solve for x
    x = 97,623,757,095.55/358,491.52
  6. Step 6: Final answer
    x = 272,318.18

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1.5x scale

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.