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Finding the Fourth Proportional to 358,257.70, 494,403.29 and 197,113.22

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Solution

The fourth proportional to 358,257.70, 494,403.29 and 197,113.22 is: 272,020.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,257.70 : 494,403.29 = 197,113.22 : x
  2. Step 2: Convert to fraction form
    358,257.70/494,403.29 = 197,113.22/x
  3. Step 3: Cross multiply
    358,257.70x = 494,403.29 × 197,113.22
  4. Step 4: Simplify right side
    358,257.70x = 97,453,424,470.49
  5. Step 5: Solve for x
    x = 97,453,424,470.49/358,257.70
  6. Step 6: Final answer
    x = 272,020.46

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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.