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Finding the Fourth Proportional to 373,439.94, 515,284.65 and 354,524.82

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Solution

The fourth proportional to 373,439.94, 515,284.65 and 354,524.82 is: 489,184.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,439.94 : 515,284.65 = 354,524.82 : x
  2. Step 2: Convert to fraction form
    373,439.94/515,284.65 = 354,524.82/x
  3. Step 3: Cross multiply
    373,439.94x = 515,284.65 × 354,524.82
  4. Step 4: Simplify right side
    373,439.94x = 182,681,197,790.01
  5. Step 5: Solve for x
    x = 182,681,197,790.01/373,439.94
  6. Step 6: Final answer
    x = 489,184.95

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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.