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Finding the Fourth Proportional to 326,866.68, 489,846.42 and 148,938.84

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Solution

The fourth proportional to 326,866.68, 489,846.42 and 148,938.84 is: 223,201.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,866.68 : 489,846.42 = 148,938.84 : x
  2. Step 2: Convert to fraction form
    326,866.68/489,846.42 = 148,938.84/x
  3. Step 3: Cross multiply
    326,866.68x = 489,846.42 × 148,938.84
  4. Step 4: Simplify right side
    326,866.68x = 72,957,157,572.95
  5. Step 5: Solve for x
    x = 72,957,157,572.95/326,866.68
  6. Step 6: Final answer
    x = 223,201.57

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1.5x scale

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.