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Finding the Fourth Proportional to 358,255.95, 494,400.87 and 197,111.46

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Solution

The fourth proportional to 358,255.95, 494,400.87 and 197,111.46 is: 272,018.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,255.95 : 494,400.87 = 197,111.46 : x
  2. Step 2: Convert to fraction form
    358,255.95/494,400.87 = 197,111.46/x
  3. Step 3: Cross multiply
    358,255.95x = 494,400.87 × 197,111.46
  4. Step 4: Simplify right side
    358,255.95x = 97,452,079,164.97
  5. Step 5: Solve for x
    x = 97,452,079,164.97/358,255.95
  6. Step 6: Final answer
    x = 272,018.04

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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.