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Finding the Fourth Proportional to 342,520.73, 513,783.23 and 89,798.95

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Solution

The fourth proportional to 342,520.73, 513,783.23 and 89,798.95 is: 134,698.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,520.73 : 513,783.23 = 89,798.95 : x
  2. Step 2: Convert to fraction form
    342,520.73/513,783.23 = 89,798.95/x
  3. Step 3: Cross multiply
    342,520.73x = 513,783.23 × 89,798.95
  4. Step 4: Simplify right side
    342,520.73x = 46,137,196,472.42
  5. Step 5: Solve for x
    x = 46,137,196,472.42/342,520.73
  6. Step 6: Final answer
    x = 134,698.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.